Steamer "Keystone State" at Wheeling, West Virginia
Photograph shows a side view of the Keystone State steamboat. Copyright 1905 by Wm. T. Nicoll. Additional title on item: West Virginia. Wheeling. Steamer Keystone State. No. 1961.
Keystone, South Dakota. Gold mining town
Picryl description: Public domain image of an industrial building, warehouse, depot, train station, 19th-20th century, free to use, no copyright restrictions.
Machine shop. Keystone Drilling Company. Beaver Falls, Pennsylvania
Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.
Machine shop. Keystone Drilling Company, Beaver Falls, Pennsylvania
Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.
Storefront, Rushmore Souvenirs, Route 16A, Keystone, South Dakota
Title, date and keywords based on information provided by the photographer. Purchase; John Margolies 2010 (DLC/PP-2010:191). Credit line: John Margolies Roadside America photograph archive (1972-2008), Library ... More
![[Exterior view. Ethnological head called "Tibetan" on a keystone of a first story pavilion window. Library of Congress Thomas Jefferson Building, Washington, D.C.]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTkvMDkvMjUvZXh0ZXJpb3Itdmlldy1ldGhub2xvZ2ljYWwtaGVhZC1jYWxsZWQtdGliZXRhbi1vbi1hLWtleXN0b25lLW9mLWEtZmlyc3Qtc3RvcnktMWVlNWI4LTEwMjQuanBn/40/27/webp "[Exterior view. Ethnological head called \"Tibetan\" on a keystone of a first story pavilion window. Library of Congress Thomas Jefferson Building, Washington, D.C.]")
[Exterior view. Ethnological head called "Tibetan" on a keystone of a ...
Forms part of the Library of Congress Series in the Carol M. Highsmith Archive.
![[Main Reading Room. Detail of voluted keystone and sculpted dome frieze. Library of Congress Thomas Jefferson Building, Washington, D.C.]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTkvMDkvMjgvbWFpbi1yZWFkaW5nLXJvb20tZGV0YWlsLW9mLXZvbHV0ZWQta2V5c3RvbmUtYW5kLXNjdWxwdGVkLWRvbWUtZnJpZXplLWxpYnJhcnktNGU5YjRhLTEwMjQuanBn/40/30/webp "[Main Reading Room. Detail of voluted keystone and sculpted dome frieze. Library of Congress Thomas Jefferson Building, Washington, D.C.]")
[Main Reading Room. Detail of voluted keystone and sculpted dome friez...
Forms part of the Library of Congress Series in the Carol M. Highsmith Archive.
![[Exterior view. Ethnological head called "Blonde European" on a keystone of a first story pavilion window. Library of Congress Thomas Jefferson Building, Washington, D.C.]](https://cache.getarchive.net/Prod/thumb/cdn18/L3Bob3RvLzIwMTkvMTAvMDYvZXh0ZXJpb3Itdmlldy1ldGhub2xvZ2ljYWwtaGVhZC1jYWxsZWQtYmxvbmRlLWV1cm9wZWFuLW9uLWEta2V5c3RvbmUtb2YtYS1maXJzdC1jNzNkYmYtMTAyNC5qcGc%3D/40/24/webp "[Exterior view. Ethnological head called \"Blonde European\" on a keystone of a first story pavilion window. Library of Congress Thomas Jefferson Building, Washington, D.C.]")
[Exterior view. Ethnological head called "Blonde European" on a keysto...
Forms part of the Library of Congress Series in the Carol M. Highsmith Archive.
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Joker Mine, Shafthouse, Medicine Bow National Forest, Northwest of Key...
Survey number: HAER WY-45-A Building/structure dates: 1905 Initial Construction
Joker Mine, Shafthouse, Medicine Bow National Forest, Northwest of Key...
Survey number: HAER WY-45-A Building/structure dates: 1905 Initial Construction
The "Keystone" Battery of Pennsylvania. American Civil War 1861-1865.
No. B464. Gift; Col. Godwin Ordway; 1948. The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites a... More
Keystone Farm - The barnyard - Drawing. Public domain image.
Barnyard and horse drinking from irrigating ditch, Kern County, Calif. No. 346. This record contains unverified data from caption card. Caption card tracings: Calif. Kern Co. ca. 1890; Farms and farming views C... More
Keystone, South Dakota. Gold mining town
Public domain photograph of life in the United States in the 1930s, free to use, no copyright restrictions image - Picryl description
Keystone, South Dakota. Gold mining town
Public domain photograph of life in the United States in the 1930s, free to use, no copyright restrictions image - Picryl description
Welding. Structural shop, Keystone Drilling Company. Beaver Falls, Pen...
Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Portrait photo of The "Keystone" Battery, of Pennsylvania
The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites and salt, which creates a glossy surface to h... More
Potomac Electric Power Co. air conditioning and lighting. Keystone Res...
Public domain photograph of kitchen, free to use, no copyright restrictions image - Picryl description
Checking materials against blueprint. Keystone Drilling Company, Beave...
Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description
Assembling excavator scoop. Keystone Drilling Company, Beaver Falls, P...
Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description
Hand forging on light fire. Keystone Drilling Company, Beaver Falls, P...
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.
Joker Mine, Shafthouse, Medicine Bow National Forest, Northwest of Key...
Survey number: HAER WY-45-A Building/structure dates: 1905 Initial Construction
The "Keystone" Battery, of Pennsylvania during American Civil War
No. B461. Gift; Col. Godwin Ordway; 1948. The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites a... More
Keystone Mill, Park City, Summit County, UT
Survey number: HAER UT-28 Building/structure dates: ca. 1900 Initial Construction
Officers of the "Keystone" Battery, of Pennsylvania
No. B472. Gift; Col. Godwin Ordway; 1948. The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites a... More
![[Civil War envelope showing eagle and American flags atop an arch listing Union states with Pennsylvania in the keystone and bearing the message "One nation.--One government."]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTkvMDkvMDQvY2l2aWwtd2FyLWVudmVsb3BlLXNob3dpbmctZWFnbGUtYW5kLWFtZXJpY2FuLWZsYWdzLWF0b3AtYW4tYXJjaC1saXN0aW5nLXVuaW9uLTVlZTMyNy0xMDI0LmpwZw%3D%3D/40/22/webp "[Civil War envelope showing eagle and American flags atop an arch listing Union states with Pennsylvania in the keystone and bearing the message \"One nation.--One government.\"]")
[Civil War envelope showing eagle and American flags atop an arch list...
Addressed to Rev. C. L. Ehrenfeld, Altoona, Pa.; postmarked Johnstown, Pa.; bears 3 cent stamp. Gift; Tom Liljenquist; 2010; (DLC/PP-2010:105). Forms part of: Liljenquist Family Collection of Civil War Photogr... More
![[Hauling logs to Railway, Keystone Lumber Co.]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDAvMDEvMDEvaGF1bGluZy1sb2dzLXRvLXJhaWx3YXkta2V5c3RvbmUtbHVtYmVyLWNvLTEwMjQuanBn/40/31/webp "[Hauling logs to Railway, Keystone Lumber Co.]")
[Hauling logs to Railway, Keystone Lumber Co.]
Picryl description: Public domain image of railroad tracks, train car, railway, free to use, no copyright restrictions.
Keystone Works, Sterling, Ill.
Picryl description: Public domain photo of a factory, warehouse, commercial or industrial building, free to use, no copyright restrictions image.
Keystone Drilling Company. Beaver Falls, Pennsylvania
Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description
Cleaning completed drilling machine with high pressured jenny. Keyston...
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.
Machine shop. Keystone Drilling Company. Beaver Falls, Pennsylvania
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.
Conversion. Toy factory. Closeup of one of the hexagonal brass termina...
Public domain photograph of a machine part, motor, equipment, free to use, no copyright restrictions image - Picryl description
1880 train billboard, near Keystone, Rt. 16, Keystone, South Dakota
Title, date and keywords based on information provided by the photographer. Purchase; John Margolies 2010 (DLC/PP-2010:191). Credit line: John Margolies Roadside America photograph archive (1972-2008), Library ... More
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Keystone Bridge Company Bridge, Fairground Street spanning Illinois Ce...
Survey number: HAER MS-5 Public domain photograph of train depot, warehouse, railroad works, free to use, no copyright restrictions image - Picryl description
Keystone Mill, Park City, Summit County, UT
Survey number: HAER UT-28 Building/structure dates: ca. 1900 Initial Construction
Keystone Copper Mine, Copperopolis, Calaveras County
The Library holds only one photo from a pair published as a stereographic view. Gems of California scenery, no. 954. LOT subdivision subject: Copper Mines. This record contains unverified old data from caption card.
Alaska stage entrance to Keystone Canyon
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
Keystone varsity eight training at Poughkeepsie for the national regat...
Photograph shows University of Pennsylvania varsity eight-oared crew team rowing on the Hudson River in preparation for an intercollegiate regatta at Poughkeepsie, New York. Hand-lettered on negative: "325083."
![New Minister to Norway is luncheon guest of Democratic Committeewomen. Washington, D.C., April 26. Democratic National Committeewomen from many of the states played hosts at a luncheon today in honor of Mrs. J. Borden Harriman, newly appointed U.S. Minister to Norway. Mrs. Harriman (left) is shown with Mrs. Carroll Miller, sister of Senator Guffey of P[...] and Committeewoman from the Keystone state. Mrs. Miller acted as Toastmistress for the affair which was held at the Democratic Women's Club, 4/26/1937](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MzcvMDEvMDEvbmV3LW1pbmlzdGVyLXRvLW5vcndheS1pcy1sdW5jaGVvbi1ndWVzdC1vZi1kZW1vY3JhdGljLWNvbW1pdHRlZXdvbWVuLXdhc2hpbmd0b24tMTAyNC5qcGc%3D/40/31/webp "New Minister to Norway is luncheon guest of Democratic Committeewomen. Washington, D.C., April 26. Democratic National Committeewomen from many of the states played hosts at a luncheon today in honor of Mrs. J. Borden Harriman, newly appointed U.S. Minister to Norway. Mrs. Harriman (left) is shown with Mrs. Carroll Miller, sister of Senator Guffey of P[...] and Committeewoman from the Keystone state. Mrs. Miller acted as Toastmistress for the affair which was held at the Democratic Women's Club, 4/26/1937")
New Minister to Norway is luncheon guest of Democratic Committeewomen....
A black and white photo of a group of women sitting at a table. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Keystone Bridge Company Bridge, Fairground Street spanning Illinois Ce...
Survey number: HAER MS-5 Public domain photograph of train tracks, railroad works, free to use, no copyright restrictions image - Picryl description
Keystone Bridge Company Bridge, Fairground Street spanning Illinois Ce...
Survey number: HAER MS-5 Public domain photograph - historical image of Illinois, United States, free to use, no copyright restrictions image - Picryl description
Keystone Canyon, Alaska - Frank G. Carpenter collection
View of canyon with river below. Title transcribed from caption accompanying item. Forms part of: Frank and Frances Carpenter collection (Library of Congress). Gift; Mrs. W. Chapin Huntington; 1951.
![[The Keystone eye-skill training s[eries]]](https://cache.getarchive.net/Prod/thumb/cdn18/L3Bob3RvLzIwMTkvMTEvMjYvdGhlLWtleXN0b25lLWV5ZS1za2lsbC10cmFpbmluZy1zZXJpZXMtYWI4ZGEzLTEwMjQuanBn/40/32/webp "[The Keystone eye-skill training s[eries]]")
[The Keystone eye-skill training s[eries]]
Stereoscopic eye exercise showing bulls-eye superimposed on scene depicting woman and girl standing on road next to Lake Ojford, Norway. J35954 U.S. Copyright Office. Caption from similar stereograph on Open P... More
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Keystone Bridge, Spanning South Platte River, Waterton, Jefferson Coun...
Significance: The bridge is a pin connected iron Pratt through truss, manufactured by the Keystone Bridge Company of Pittsburgh, Pennsylvania. It was probably built originally for the Denver, South Park, and Pa... More
Keystone Bridge, Spanning South Platte River, Waterton, Jefferson Coun...
Significance: The bridge is a pin connected iron Pratt through truss, manufactured by the Keystone Bridge Company of Pittsburgh, Pennsylvania. It was probably built originally for the Denver, South Park, and Pa... More
Keystone Bridge, Spanning South Platte River, Waterton, Jefferson Coun...
Significance: The bridge is a pin connected iron Pratt through truss, manufactured by the Keystone Bridge Company of Pittsburgh, Pennsylvania. It was probably built originally for the Denver, South Park, and Pa... More
Joker Mine, Log Cabin, Medicine Bow National Forest, Northwest of Keys...
Survey number: HAER WY-45-B Building/structure dates: 1905 Initial Construction
Joker Mine, Shafthouse, Medicine Bow National Forest, Northwest of Key...
Survey number: HAER WY-45-A Building/structure dates: 1905 Initial Construction
The "Keystone" Battery of Pennsylvania during American Civil War
No. B460. Gift; Col. Godwin Ordway; 1948. The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites a... More
The "Keystone" Battery, of Pennsylvania. American Civil War 1861-1865.
No. B1237. Gift; Col. Godwin Ordway; 1948. The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites ... More
Calaveras big trees. The Keystone State--big tree grove, Calaveras Cou...
Photograph shows a man and woman sitting near a giant sequoia. Sign on tree reads: "The Keystone State." No. 899.
Damascus Gate and environs. Keystone in Solomon's Quarries
Public domain photograph of 1920s Israel, free to use, no copyright restrictions image - Picryl description
![[A Virgin pine forest, Keystone Lumber Company]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDEvMDEvMDEvYS12aXJnaW4tcGluZS1mb3Jlc3Qta2V5c3RvbmUtbHVtYmVyLWNvbXBhbnktMTAyNC5qcGc%3D/40/31/webp "[A Virgin pine forest, Keystone Lumber Company]")
[A Virgin pine forest, Keystone Lumber Company]
Public domain photograph of Middle East, free to use, no copyright restrictions image - Picryl description
Keystone Canyon - Glass negative photogrpah. Public domain.
Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description
The gentleman from Pennsylvania. Sen. David A. Reed, senior Senator fr...
Two men shaking hands in front of a building. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Keystone Pup - A black and white photo of a small plane
Biplane on field. JO 8458 U.S. Copyright Office. Copyright by Nichols Studio. No. 4.
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Keystone Bridge Company Bridge, Fairground Street spanning Illinois Ce...
Survey number: HAER MS-5 Public domain photograph - historical image of Illinois, United States, free to use, no copyright restrictions image - Picryl description
Joker Mine, Shafthouse, Medicine Bow National Forest, Northwest of Key...
Survey number: HAER WY-45-A Building/structure dates: 1905 Initial Construction
![[Skidding pine logs, Keystone Lumber Company]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDEvMDEvMDEvc2tpZGRpbmctcGluZS1sb2dzLWtleXN0b25lLWx1bWJlci1jb21wYW55LTEwMjQuanBn/40/31/webp "[Skidding pine logs, Keystone Lumber Company]")
[Skidding pine logs, Keystone Lumber Company]
Public domain photograph of Middle East, free to use, no copyright restrictions image - Picryl description
Using 2000 pound steam hammer on jar rein for drilling equipment. Keys...
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.
Acetelyne torch cutting, structural shop. Keystone Drilling Company, B...
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.
Machine shop. Keystone Drilling Company, Beaver Falls, Pennsylvania
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.
Forge shop. Gas heated furnace. Keystone Drilling Company, Beaver Fall...
Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.
Conversion. Toy factory. This worker formerly produced toy wheels on t...
Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description
The steamboat Keystone pushing empty barges along the Kanawha River
Public domain photograph of a historic place in Virginia, no copyright restrictions image - Picryl description
![[Exterior view. Ethnological head on a keystone of a first story pavilion window. Library of Congress Thomas Jefferson Building, Washington, D.C.]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTkvMDkvMjIvZXh0ZXJpb3Itdmlldy1ldGhub2xvZ2ljYWwtaGVhZC1vbi1hLWtleXN0b25lLW9mLWEtZmlyc3Qtc3RvcnktcGF2aWxpb24td2luZG93LTVkMmI2Zi0xMDI0LmpwZw%3D%3D/40/30/webp "[Exterior view. Ethnological head on a keystone of a first story pavilion window. Library of Congress Thomas Jefferson Building, Washington, D.C.]")
[Exterior view. Ethnological head on a keystone of a first story pavil...
Forms part of the Library of Congress Series in the Carol M. Highsmith Archive.
Aerial view, Mount Rushmore, near Keystone, South Dakota
Mount Rushmore is a monumental granite sculpture by Gutzon Borglum (1867-1941), located within the United States Presidential Memorial that represents the first 150 years of the history of the United States of ... More
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
"City of Houston" taken from the top of the Keystone Bldg., center of ...
J269866 U.S. Copyright Office On front: "Copyright applied for, taken 2/26/24". Copyright deposit; Litterst Commercial Photo Co.; June 7, 1924.
![[Logging railroad, Keystone Lumber Company]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDEvMDEvMDEvbG9nZ2luZy1yYWlscm9hZC1rZXlzdG9uZS1sdW1iZXItY29tcGFueS0xMDI0LmpwZw%3D%3D/40/31/webp "[Logging railroad, Keystone Lumber Company]")
[Logging railroad, Keystone Lumber Company]
Picryl description: Public domain image of a locomotive, train cars, railroad tracks, railway, 19th-20th century, free to use, no copyright restrictions.
![[Hauling pine logs, Keystone Lumber Company]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDEvMDEvMDEvaGF1bGluZy1waW5lLWxvZ3Mta2V5c3RvbmUtbHVtYmVyLWNvbXBhbnktMTAyNC5qcGc%3D/40/31/webp "[Hauling pine logs, Keystone Lumber Company]")
[Hauling pine logs, Keystone Lumber Company]
Public domain photograph of Middle East, free to use, no copyright restrictions image - Picryl description
Potomac Electric Power Co. air conditioning and lighting. Keystone Res...
Public domain photograph of midcentury American architecture, free to use, no copyright restrictions image - Picryl description
Electric welder in structural shop of Keystone Drilling Company. Beave...
Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description
Power excavator in shovel assembly room. Keystone Drilling Company, Be...
Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description
Conversion. Toy factory. Skillfully operating this massive press, a wo...
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.
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Keystone Bridge, Spanning South Platte River, Waterton, Jefferson Coun...
Significance: The bridge is a pin connected iron Pratt through truss, manufactured by the Keystone Bridge Company of Pittsburgh, Pennsylvania. It was probably built originally for the Denver, South Park, and Pa... More
Keystone Bridge Company Bridge, Fairground Street spanning Illinois Ce...
Survey number: HAER MS-5 Public domain photograph - historical image of Illinois, United States, free to use, no copyright restrictions image - Picryl description
Keystone Bridge Company Bridge, Fairground Street spanning Illinois Ce...
Survey number: HAER MS-5 Public domain photograph - historical image of Illinois, United States, free to use, no copyright restrictions image - Picryl description
Joker Mine, Log Cabin, Medicine Bow National Forest, Northwest of Keys...
Survey number: HAER WY-45-B Building/structure dates: 1905 Initial Construction
Joker Mine, Shafthouse, Medicine Bow National Forest, Northwest of Key...
Survey number: HAER WY-45-A Building/structure dates: 1905 Initial Construction
Joker Mine, Shafthouse, Medicine Bow National Forest, Northwest of Key...
Survey number: HAER WY-45-A Building/structure dates: 1905 Initial Construction
Joker Mine, Shafthouse, Medicine Bow National Forest, Northwest of Key...
Survey number: HAER WY-45-A Building/structure dates: 1905 Initial Construction
Aero view of Keystone, West Virginia 1911.
Perspective map not drawn to scale. Bird's-eye-view. LC Panoramic maps (2nd ed.), 998 Available also through the Library of Congress Web site as a raster image. Vault AACR2: 100
Machine shop. Keystone Drilling Company, Beaver Falls, Pennsylvania
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.
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Powder Works Bridge, Spanning San Lorenzo River, Keystone Way, Paradis...
type-4 Smith Truss; 180' long; 2 span Significance: Powder Works Bridge is the second oldest of twenty-one extant Smith truss covered bridges in the United States. It was built in 1872 for the California Powde... More
Joker Mine, Shafthouse, Medicine Bow National Forest, Northwest of Key...
Survey number: HAER WY-45-A Building/structure dates: 1905 Initial Construction
Joker Mine, Shafthouse, Medicine Bow National Forest, Northwest of Key...
Survey number: HAER WY-45-A Building/structure dates: 1905 Initial Construction