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Conservation. Glass gauges replacing steel. Checking an inside diameter of a cartridge case with one of the glass gauges, which replace steel gauges at the Frankford Arsenal, are produced by acid etching. Glass gauges are lighter and cheaper than steel, permit greater visibility in inspection, are not as much affected by room temperatures and heat of operators' hands, are not corroded by perspiration, need no protection against rusting, do not acquire burrs that would change the effective sizes. They can save the annual use of 250 tons of critical tool steel in government arsenals alone

Conservation. Glass gauges replacing steel. Checking an inside diamete...

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

Conservation. Glass gauges replacing steel. Checking an inside diameter of a cartridge case with one of the glass gauges which replace steel gauges at the Frankford Arsenal. Glass gauges are lighter and cheaper than steel, permit greater visibility in inspection, are not as much affected by room temperatures and heat of operators' hands, are not corroded by perspiration, need no protection against rusting, do not acquire burrs that would change the effective sizes. They can save the annual use of 250 tons of critical tool steel in government arsenals alone

Conservation. Glass gauges replacing steel. Checking an inside diamete...

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

Conservation. Glass gauges replacing steel. Checking an inside diameter of a cartridge case with one of the glass gauges which replace steel gauges at the Frankford Arsenal. Glass gauges are lighter and cheaper than steel, permit greater visibility in inspection, are not as much affected by room temperatures and heat of operators' hands, are not corroded by perspiration, need no protection against rusting, do not acquire burrs that would change the effective sizes. They can save the annual use of 250 tons of critical tool steel in government arsenals alone

Conservation. Glass gauges replacing steel. Checking an inside diamete...

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

Conservation. Glass gauges replacing steel. A steel plug gauge, since replaced by a glass gauge at the Frankford Arsenal, is shown checking an inside diameter of a cartridge case. Glass gauges are lighter and cheaper than steel, permit greater visibility in inspection, are not as much affected by room temperatures and heat of operators' hands, are not corroded by perspiration, need no protection against rusting, do not acquire burrs that would change the effective sizes. They can save the annual use of 250 tons of critical tool steel in government arsenals alone

Conservation. Glass gauges replacing steel. A steel plug gauge, since ...

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

Three-inch A.A. cartridge cases. The art of metal drawing is employed to turn brass discs punched from rolled sheets into long tubular cartridge case to carry the powder charges that send explosive shells up to meet enemy aircraft. The first operation is performed by a press which forms the flat disc into cups

Three-inch A.A. cartridge cases. The art of metal drawing is employed ...

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

Drawing of a cartridge case. Skilled worker drawing a five-inch cartridge case for the big anti-aircraft guns. The yard in which the work is performed is one of eleven Navy yard arsenals which are working at top speed to furnish ammunition needed for our two-ocean Navy

Drawing of a cartridge case. Skilled worker drawing a five-inch cartri...

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

Three-inch A.A. cartridge cases. Antiaircraft cartridge cases go through a rough trimming and a drawing operation. This drawing is the third of a series that changes a flat metal disc into the tubular shape that is a cartridge case, ready for loading with an explosive shell and a propelling charge

Three-inch A.A. cartridge cases. Antiaircraft cartridge cases go throu...

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

Cartridge drawing machine. Skilled worker drawing a five-inch cartridge case for the big anti-aircraft guns. The yard in which this work is performed is one of eleven Navy arsenals which are working at top speed to furnish ammunition needed for our two-ocean Navy

Cartridge drawing machine. Skilled worker drawing a five-inch cartridg...

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

Conservation. Glass gauges replacing steel. Checking an inside diameter of a cartridge case with one of the glass gauges, which replace steel gauges at the Frankford Arsenal, are produced by acid etching. Glass gauges are lighter and cheaper than steel, permit greater visibility in inspection, are not as much affected by room temperatures and heat of operators' hands, are not corroded by perspiration, need no protection against rusting, do not acquire burrs that would change the effective sizes. They can save the annual use of 250 tons of critical tool steel in government arsenals alone

Conservation. Glass gauges replacing steel. Checking an inside diamete...

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.

[Ann Bonfoey Taylor wearing hunting outfit including Spanish boots and a bag adapted from a cartridge case, Colorado]

[Ann Bonfoey Taylor wearing hunting outfit including Spanish boots and...

Photograph taken for Vogue magazine photo shoot for May 1967 issue. Toni Frissell Collection (Library of Congress). Published in: Vogue, "American Westerns, 1967: Mrs. Vernon J. Taylor, Jr.: A relaxed perfecti... More

Drawing of a cartridge case. Skilled worker drawing a five-inch cartridge case for the big anti-aircraft guns. The yard in which the work is performed is one of eleven Navy yard arsenals which are working at top speed to furnish ammunition needed for our two-ocean Navy

Drawing of a cartridge case. Skilled worker drawing a five-inch cartri...

Actual size of negative is C (approximately 4 x 5 inches). Caption edited by agency. Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division.... More

Cartridge cases moving toward completion. Workers getting ready to turn the head for a five-inch cartridge case. The work is being performed in one of eleven Navy arsenals which are working at top speed for the war program

Cartridge cases moving toward completion. Workers getting ready to tur...

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

Cartridge drawing machine. Skilled worker drawing a five-inch cartridge case for the big anti-aircraft guns. The yard in which this work is performed is one of eleven Navy arsenals which are working at top speed to furnish ammunition needed for our two-ocean Navy

Cartridge drawing machine. Skilled worker drawing a five-inch cartridg...

Actual size of negative is C (approximately 4 x 5 inches). Caption card lists some of the printing history of image. Caption edited by agency. Title and other information from caption card. Transfer; United Sta... More

Conservation. Glass gauges replacing steel. Checking the inside diameter of a cartridge case with one of the glass gauges, which are replacing steel gauges at the Frankford Arsenal. Glass gauges are lighter and cheaper than steel, permit greater visibility in inspection, are not as much affected by room temperatures and heat of operators' hands, are not corroded by perspiration, need no protection against rusting, do not acquire burrs that would change the effective sizes. They can save the annual use of 250 tons of critical tool steel in government arsenals alone

Conservation. Glass gauges replacing steel. Checking the inside diamet...

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