Galvanized sheet steel of 24 gauge is used as corner reinforcement. Sc...
Public domain photograph of Louisiana in 1930s, free to use, no copyright restrictions image - Picryl description
Top of screen door joint. This shows the reinforcement placed over the...
Public domain photograph of attic, house frame, free to use, no copyright restrictions image - Picryl description
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Cutting metal reinforcement strips to fit the screen door joints. Scre...
Picryl description: Public domain photograph of a worker, construction, carpenter, 1930s, free to use, no copyright restrictions.
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
![Dome over Greek Orth. [i.e., Orthodox] Cathedral braced for reinforcement](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MzQvMDEvMDEvZG9tZS1vdmVyLWdyZWVrLW9ydGgtaWUtb3J0aG9kb3gtY2F0aGVkcmFsLWJyYWNlZC1mb3ItcmVpbmZvcmNlbWVudC0xMDI0LmpwZw%3D%3D/40/27/webp "Dome over Greek Orth. [i.e., Orthodox] Cathedral braced for reinforcement")
Dome over Greek Orth. [i.e., Orthodox] Cathedral braced for reinforcem...
Public domain photograph of cathedral, church building, free to use, no copyright restrictions image - Picryl description
A black and white photo of a man bending over, Texas, during Great Dep...
Public domain photograph of construction site, free to use, no copyright restrictions image - Picryl description
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Tying iron reinforcement bars together before pouring concrete at migr...
Picryl description: Public domain image of industrial or agricultural worker, 1930s, 20th-century, free to use, no copyright restrictions. show less
The corner is squared and reinforcement nailed over joints. Screen doo...
Public domain photograph of construction site, free to use, no copyright restrictions image - Picryl description
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Nailing metal reinforcement over the screen wire. This is the inside o...
Picryl description: Public domain image of workers, labor, 1940s, economic conditions, free to use, no copyright restrictions.
Fastening metal reinforcement to screen door joints. This metal is 24-...
Picryl description: Public domain image of a construction site, wooden frame, timber, free to use, no copyright restrictions.
Cutting metal reinforcement for screen door joints. Charles County, La...
Public domain photograph of Louisiana in 1930s, free to use, no copyright restrictions image - Picryl description
Screen door stock assembled and held together with corrugated fastener...
Public domain photograph of 3d object museum collection, metal, no copyright restrictions image - Picryl description
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Mead Avenue Bridge, Spanning French Creek at Mead Avenue, Meadville, C...
Significance: Mead Avenue, formerly Dock Street, bears the unusual distinction of having two bridges on the same site at one time. Grafted to the original double-intersection Whipple truss built by Penn Bridge... More
Melbourne, Australia. Beaufort torpedo bomber turret sub-assembly plan...
Picryl description: Public domain image of a woman working, women labor, 1940s, economic conditions, home front, world war two, free to use, no copyright restrictions.