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U.S.S. New York, crew of forward 8 inch guns

U.S.S. New York, crew of forward 8 inch guns

Public domain photograph of American ship, free to use, no copyright restrictions image - Picryl description

U.S.S. New Orleans, 6 inch gun - Public domain image. Dry plate negative.

U.S.S. New Orleans, 6 inch gun - Public domain image. Dry plate negati...

Picryl description: Public domain image of a cannon, artillery gun, free to use, no copyright restrictions.

U.S.S. New York, breech of 8 inch gun and crew

U.S.S. New York, breech of 8 inch gun and crew

Public domain image of a American navy warship, no copyright restrictions image - Picryl description

[U.S.S. New York, breech of eight inch gun]

[U.S.S. New York, breech of eight inch gun]

Public domain image of a American navy warship, no copyright restrictions image - Picryl description

S.J. Dixon crossing Niagara on 7/8 inch wire cable; Signor Balleni crossing Niagara

S.J. Dixon crossing Niagara on 7/8 inch wire cable; Signor Balleni cro...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. 14 INCH GUN; VARIOUS OPERATIONS IN SHRINKING JACKET ON IT

NAVY YARD, U.S., WASHINGTON. 14 INCH GUN; VARIOUS OPERATIONS IN SHRINK...

Public domain photograph of industrial building, factory, free to use, no copyright restrictions image - Picryl description

William Browner, Ast. Astronomer at the Naval Obs. looking thru 25 inch reflectuary teles.

William Browner, Ast. Astronomer at the Naval Obs. looking thru 25 inc...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

U.S. Negro troops on way to Liberia. The Naval armed guard on a Liberia bound transport stages a gun drill with a 4 inch deck gun and a heavy anti-aircraft machine gun. The Negro troops, members of a highly trained engineer unit of the U.S. Army, made the trip to Africa without incident

U.S. Negro troops on way to Liberia. The Naval armed guard on a Liberi...

Picryl description: Public domain photograph of a ship, docks, navy, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Clearing rock out of the ditch

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Pipeline going through hilly country

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Backfilling the ditch after the pipe has been laid

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Hoisting a section of pipe

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

Tulsa, Oklahoma. Pumping station engineer with an apparatus known variously as "pig", "go-devil", and "scraper". It is sent through the eight inch pipeline at intervals for cleaning, to remove obstructions and to detect leaks

Tulsa, Oklahoma. Pumping station engineer with an apparatus known vari...

Public domain photograph of the United States military and military-industrial complex before World War Two, 1930s, free to use, no copyright restrictions image - Picryl description

13 inch mortar "Dictator", in front of Petersburg, Virginia

13 inch mortar "Dictator", in front of Petersburg, Virginia

No. B772. Forms part of: Civil War Photographs (Anthony-Taylor-Rand-Ordway-Eton collection).

13 inch mortar "Dictator" in front of Petersburg, Virginia

13 inch mortar "Dictator" in front of Petersburg, Virginia

Photograph shows Union officers and enlisted men standing around a large mortar on a platform on a flatbed railroad car near Petersburg, Virginia. No. 4794. Handwritten on back of mount: Gardner's photographic... More

U.S.S. Atlanta 6 inch gun - Public domain image. Dry plate negative.

U.S.S. Atlanta 6 inch gun - Public domain image. Dry plate negative.

Picryl description: Public domain image of an artillery gun, cannon, weapon, free to use, no copyright restrictions.

Coal barges and the passers whose bodies are as black as night with coal dust Malta presents a white stone hill of buildings and forts with not an inch of shade from the hot eastern sun.

Coal barges and the passers whose bodies are as black as night with c...

Photographs show laborers on a coal barge with baskets, and a view of the coastline of Malta. On page: no. 1509 (top image) and no. 1510 (bottom image). In album: European pictures (1923 trip), p. [134]. Negat... More

Employee housing. Interior typical of houses at Norris. Floor is of third-grade tongue-and-groove oak which is produced locally. Walls are 7/8 inch tongue-and-groove pine to the window sill level and large sheets of quarter- inch thick fir plywood above. Ceilings are of insulating board. Windows are steel with aluminum screens. Houses are electrically heated; hot water and heating equipment are likewise electrical

Employee housing. Interior typical of houses at Norris. Floor is of th...

Public domain photograph of living room, free to use, no copyright restrictions image - Picryl description

War ration book no. 3. This new ration book, replacement for present books when their stamps are used up, will be distributed during the early summer. It contains four pages of "point" stamps, similar to the point stamps in war ration book 2, though slightly different in design and printed in brown ink. It also contains four pages of "unit" stamps for the type of rationing now used for sugar, coffee, and shoes. Each page of fourty-eight stamps bears the design of a different war machine, including guns, tanks, aircraft carriers and planes. One of each of these stamps is reproduced separately below the picture of the book. Important note: Actual dimensions of the point ration stamps are 7/8 inch x 1 inch, while the unit stamps are 7/16 inch x 1 inch. The U.S. Secret Service requests that ration stamps not be reproduced in actual size, but less than 3/4 or over 1 1/2 times. Also, stamps should not be reproduced in color. This photograph, if reproduced, same size, meets these requirements

War ration book no. 3. This new ration book, replacement for present b...

Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Making a bend in a section of pipe

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Hoisting a section of pipe

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of 1930s-1940s US industrial development, Second World War, US war production, indusry, no copyright restrictions image - Picryl description

A ten-thousandth of an inch counts. Turning a piece of torpedo machinery to within a ten-thousandth of an inch at an eastern Navy arsenal

A ten-thousandth of an inch counts. Turning a piece of torpedo machine...

Picryl description: Public domain image of a factory worker, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions. show less

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas to eastern refineries, completed in July 1943. Making a bend in a section of pipe

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Washington, D.C. Installing a "Victory" storm pane, or extra pane of glass on a home window as a war-time fuel conservation measure. Fastening a three inch strip of molding to the lower frame of the window

Washington, D.C. Installing a "Victory" storm pane, or extra pane of g...

Picryl description: Public domain historical photo of Washington DC during the First World War, free to use, no copyright restrictions image.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Pipe stred along the railroad tracks

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of a park, trees, outdoors, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Ditching machine going through the right of way. This machine digs a six-foot trench

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Willis Garner tack welding a section of pipe to the main line

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. The president and vice-president of the Oklahoma contracting company with Mr. Link, a transportation man from the defense plants corporation

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

The country twenty-five miles round London : planned from a scale of one mile to an inch /

The country twenty-five miles round London : planned from a scale of o...

Relief shown by hachures. "The scale around the map is divided into statute miles east and west from the meridian of London, and north & south from the parallel of the same place, which is in Lat 51°30'." Londo... More

U.S.S. Iowa, 12 inch and 8 inch gun turrets

U.S.S. Iowa, 12 inch and 8 inch gun turrets

Date based on Detroit, Catalogue J (1901). Detroit Publishing Co. no. 020438. Gift; State Historical Society of Colorado; 1949.

Looking down on 10 inch gun from crow's nest, "Washington"

Looking down on 10 inch gun from crow's nest, "Washington"

Public domain photograph - Artillery gun, cannon, armed forces, military activity, free to use, no copyright restrictions image - Picryl description

Steve Peere crossing Niagara at the rapids; S.J. Dixon crossing Niagara on 7/8 inch wire

Steve Peere crossing Niagara at the rapids; S.J. Dixon crossing Niagar...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. 14 INCH GUNS, READY TO GO TO PROVING GROUND

NAVY YARD, U.S., WASHINGTON. 14 INCH GUNS, READY TO GO TO PROVING GROU...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

Interferometer tests standard gages for automobile manufacturers. Washington, D.C. May 28. I.J. Fullmer of the Bureau of Standards is shown with an interferometer by means of which differences in length are measured in terms of wave-lengths of light to the millionth of an inch. A four-inch square precision gage is being compared for length with the Bureau's standard 4 inch, which is rectangular in shape. These gages are tested against the master gages which the different auto manufacturers check their measuring devices so that the parts of the cars separately made can be, when assembled, fitted perfectly. The standard gage and the master gage are shwon being compared in the interferometer, 52837

Interferometer tests standard gages for automobile manufacturers. Wash...

A man in a tie is looking through a microscope, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. ... More

Chrysler tank arsenal. This is one of the huge machine tools used in production of the M-3 tanks, the twenty-eight ton monsters built at the Chrysler tank arsenal in Detroit. This press works with a power of 450 tons, stamping out quarter inch steel floor plates

Chrysler tank arsenal. This is one of the huge machine tools used in p...

Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description

Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is being rolled by a three-high 100 inch plate mill to bring it to the proper length, finish, thickness and width

Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is b...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.

An Ohio manufacturer is looking for two and thirteen-sixteenths inch and three and three-sixteenths inch automatic screw machine facilities for the machining of large quantities of steel fuse parts. Item: inner can. Material: cold rolled steel tubing two and thirteen-sixteenths inch diameter by three inches. Tolerances: plus or minus --1. Quantity: five-hundred daily. Machines needed: automatic screw machine two and thirteen-sixteenths inch capacity, drill jig, single spindle tapper. Item: outer can. Material: cold rolled steel tubing three and three-sixteenths inch diameter by eight inches. Tolerances: plus .002 minus .000. Quantity: 500 daily. Machines needed: automatic screw machine, three and three-sixteenths inch capacity, drill jig, tapper, milling machine. A government procurement agency is seeking a contractor with facilities for forging heat treating and machining bulkheads. These parts are twenty-one inches in diamerter by eight inches. Material: steel, alloy CM. Dimensions: twenty-one inches in diameter by eight inches. Tolerances: close. Quantity: 500 to 6000 pieces per month

An Ohio manufacturer is looking for two and thirteen-sixteenths inch a...

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Pipe stacked along the railroad tracks

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Pipeline going through a hilly section

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of a tractor, farming equipment, agriculture, 20th century, free to use, no copyright restrictions.

Conversion. Soft drink dispenser plant. The president of an Eastern manufacturing company now producing war essentials on prime and subcontracts, checks a contour gauge manufactured for Army arsenals. Gauges for measuring cartridges and other war materials must be accurate to the 2/10,000 of an inch to meet ordnance specifications. Bristol and Martin Company, New York, New York

Conversion. Soft drink dispenser plant. The president of an Eastern ma...

Public domain photograph of New York in 1930s, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of a tractor, farming equipment, agriculture, 20th century, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Welding together forty-foot section of pipe

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of 1930s-1940s US industrial development, Second World War, US war production, indusry, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Right of way going through the countryside

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Ditching machine making a six-foot trench through the right of way

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Moving a forty-foot section of pipe into place where it will be welded to the main line

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. The operator of the ditching machine

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

Map of the Turco-Persian frontier : made by Russian and English officers in the years from 1849 to 1855 on the scale of 1:73,050 and reduced to the scale of 1:253,440 or 4 English miles to 1 inch /

Map of the Turco-Persian frontier : made by Russian and English office...

The "Floyyd" gun: 15 inch, range 6 miles.

The "Floyyd" gun: 15 inch, range 6 miles.

Photograph showing a cannon called The Floyyd [i.e., Floyd] Gun. In album: Benjamin Brown French "Photographs," p. 107. Reference copy in LOT 12251, v. 2. Original in PR 12 LOT 12251.

U.S.S. Miantonomoh, mounting 10 inch guns

U.S.S. Miantonomoh, mounting 10 inch guns

Public domain photograph of American ship, free to use, no copyright restrictions image - Picryl description

All Star Tournament, 18 Inch Balke Line, Chicago, May 7-14, 1906, Schaefer and Sutton banking for lead, Orchestra Hall

All Star Tournament, 18 Inch Balke Line, Chicago, May 7-14, 1906, Scha...

H77599 U.S. Copyright Office Copyright claimant's address: Chicago. Copyright deposit; Geo. R. Lawrence Co.; May 16, 1906.

NAVY YARD, U.S., WASHINGTON. 14 INCH GUNS, READY TO GO TO PROVING GROUND

NAVY YARD, U.S., WASHINGTON. 14 INCH GUNS, READY TO GO TO PROVING GROU...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Joining a section of pipe to the main line

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.

Anaconda smelter, Montana. Anaconda Copper Mining Company. A series of roll crushers reduce the size of ore from a maximum of one inch to the size of coarse sand

Anaconda smelter, Montana. Anaconda Copper Mining Company. A series of...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Ditch going through the right of way

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Making a bend in a section of pipe

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Map of the Turco-Persian frontier : made by Russian and English officers in the years from 1849 to 1855 on the scale of 1:73,050 and reduced to the scale of 1:253,440 or 4 English miles to 1 inch /

Map of the Turco-Persian frontier : made by Russian and English office...

The "Floyyd" gun: 15 inch, range 6 miles.

The "Floyyd" gun: 15 inch, range 6 miles.

Photograph showing a cannon called The Floyyd [i.e., Floyd] Gun. In album: Benjamin Brown French "Photographs," p. 107. Reference copy in LOT 12251, v. 2. Original in PR 12 LOT 12251.

Rand McNally & Co.'s new twelve inch terrestrial globe [gores].

Rand McNally & Co.'s new twelve inch terrestrial globe [gores].

Relief shown by hachures. Gores for a 31 cm globe. Includes analemma. LC copy imperfect: western hemisphere sheet split along fold. Available also through the Library of Congress web site as a raster image.

U.S.S. Indiana, 13 inch guns, forward turret

U.S.S. Indiana, 13 inch guns, forward turret

Public domain image of an American navy warship, 19th-century ship, no copyright restrictions image - Picryl description

Rand McNally & Co.'s new twelve inch terrestrial globe [gores].

Rand McNally & Co.'s new twelve inch terrestrial globe [gores].

Relief shown in hachures. Available also through the Library of Congress web site as a raster image.

[Battery No. 4 near Yorktown mounting ten 13 inch mortars each weighing 20,000 pounds. South end]

[Battery No. 4 near Yorktown mounting ten 13 inch mortars each weighin...

Photograph shows soldiers standing at cannons. Title and date from catalog record for associated negative: LC-B811-375.

U.S.S. Miantonomoh, 10 inch guns and forward turret

U.S.S. Miantonomoh, 10 inch guns and forward turret

Public domain image of an American navy warship, 19th-century ship, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. 14 INCH GUN; VARIOUS OPERATIONS IN SHRINKING JACKET ON IT

NAVY YARD, U.S., WASHINGTON. 14 INCH GUN; VARIOUS OPERATIONS IN SHRINK...

Public domain historic photograph of Washington DC, free to use, no copyright restrictions image - Picryl description

Hollow steel sucker rod placed in two inch casing. Ridge well project, Saint Mary's County, Maryland

Hollow steel sucker rod placed in two inch casing. Ridge well project,...

Public domain photograph - historical image of Maryland, United States, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Willis Garner about to tack a weld section of pipe

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of military shooting, machine gun, artillery, armed conflict, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from the Texas fields to eastern refineries, completed in July 1943. Inspector walking on strung pipe of a snowy day

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Caterpillar operator on the right of way gang

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Production. Naval gun mounts. Part of a 16 inch naval gun assembly is ground for surface finish in a large Midwest factory producing mounts for big naval guns and torpedo tubes. Westinghouse, Louisville, Kentucky

Production. Naval gun mounts. Part of a 16 inch naval gun assembly is ...

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Caterpillar tractor going through a stream crossed by the pipeline

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. The pipeline cutting across Amish country

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Superintendent and laying-in boss on one section of the pipeline

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Caterpillar tractor operator

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of a tractor, farming equipment, agriculture, 20th century, free to use, no copyright restrictions.

Wool replaces rubber. Wool felt, a proven substitute for rubber in washers and gaskets for machinery, may be "tailored" as shown above to meet tolerances of a few thousands of an inch for a variety of sizes and shapes. Physical properties such as resiliency, tensile strength, etc., are "made to order" during the processing stage

Wool replaces rubber. Wool felt, a proven substitute for rubber in was...

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Map of the Turco-Persian frontier : made by Russian and English officers in the years from 1849 to 1855 on the scale of 1:73,050 and reduced to the scale of 1:253,440 or 4 English miles to 1 inch /

Map of the Turco-Persian frontier : made by Russian and English office...

Fifteen inch gun at Battery Rodgers, Alexandria, Virginia, May 18, 1864

Fifteen inch gun at Battery Rodgers, Alexandria, Virginia, May 18, 186...

Photograph shows six Union soldiers positioning the fifteen inch Rodman gun at Battery Rodgers. No. 246.

A new map of Ayr Shire comprehending Kyle, Cunningham & Carrick : the scale one inch to a mile /

A new map of Ayr Shire comprehending Kyle, Cunningham & Carrick : the ...

Relief shown pictorially. Facsimile. Original version: [Norfolk, England? : s.n], 1775. Pyle sculp., Angel Court, Snow Hill, London. "Publish'd according to Act of Parliament, January 10th 1775." Available also... More

16 - inch gun, Watervliet - Glass negative photogrpah. Public domain.

16 - inch gun, Watervliet - Glass negative photogrpah. Public domain.

Picryl description: Public domain image of an artillery gun, cannon, weapon, free to use, no copyright restrictions.

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 50 CAL. GUN

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 5...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 50 CAL. GUN

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 5...

Picryl description: Public domain image of an artillery gun, cannon, weapon, free to use, no copyright restrictions.

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 50 CAL. GUN

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 5...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

Scotch machine, Washington, D.C., September 8. This machine, exhibited at the World Power Conference which is being held here, is devised so as to use every inch of matter contained in coal. The coal is put in the rettort and heated to a temperature of 1832 degrees. From the smoke and gas, Tar, Ammonium Sulphite, sulphur, light oils and gas are derived and from the tar, medicines, aromatic oils, perfumes, dyes, and acids are derived. From the light oils, motor fuel is obtained. In short: this machine wastes nothing at all

Scotch machine, Washington, D.C., September 8. This machine, exhibited...

Public domain photograph of Washington DC, free to use, no copyright restrictions image - Picryl description

Edgewood Arsenal, Maryland. Gas demonstration. Firing of 4.2 inch chemical mortar

Edgewood Arsenal, Maryland. Gas demonstration. Firing of 4.2 inch chem...

Public domain photograph of Maryland in 1930s, free to use, no copyright restrictions image - Picryl description

Production. Pipe fittings. The world's largest machine of its kind, a nine inch upsetter, is used in a Midwest plant to forge 75 mm shells for the Army. Tube Turn Incorporated

Production. Pipe fittings. The world's largest machine of its kind, a ...

Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Shovel and its operator on the right of way gang

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Tom Winkler, government inspector

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Service truck and its driver

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Edgewood Arsenal, Maryland. Gas demonstration. Firing of 4.2 inch chemical mortar

Edgewood Arsenal, Maryland. Gas demonstration. Firing of 4.2 inch chem...

Public domain photograph of Maryland in 1930s, free to use, no copyright restrictions image - Picryl description

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