University Of Pennsylvania | Philadelphia | PA |
University Of Pittsburgh | Pittsburgh | PA |
University Square Condominiums | Pittsburgh | PA |
Univ. Welding | Export | PA |
Upper Darby High School | Drexel Hill | PA |
Upper Milford School | Upper Milford | PA |
Ursinus College - Dining Room | Collegeville | PA |
U.S. Aluminam | New Kensington | PA |
U.S. Aluminum | Marietta | PA |
U.S. Aluminum | Pittsburgh | PA |
U.S. Aluminum | New Kensington | PA |
U.S. Asbestos | Manheim | PA |
U.S. Bureau Of Mines | Swedeland | PA |
U.S. Bureau Of Mines | Bruceton | PA |
U.S. Coal & Coke | Pittsburgh | PA |
U.S. Courthouse | Philadelphia | PA |
U.S. Custom House | Philadelphia | PA |
U.S. Customs Building | Philadelphia | PA |
U.S. Department Of Commerce | Pittsburgh | PA |
U.S. Dept Of Agriculture | Philadelphia | PA |
U.S. Dept Of Agriculture | Wyndmoor | PA |
U.S. Government Shell Loading Plant #1 | Tullytown | PA |
U.S. Government - Special Ordinance Plant | York | PA |
Usg Sun Shipbuilding | Chester | PA |
U.S. Gypsum | Oakmont | PA |
U.S. Gypsum | Philadelphia | PA |
U.S. Hoffman Machinery | Scranton | PA |
U.S. Hoffman Machinery | Pittsburgh | PA |
U.S. Mint | Philadelphia | PA |
U.S. Nacal Air Division | Johnsville | PA |
U.S. Pipe & Foundry | Scottdale | PA |
U.S. Post Office | Philadelphia | PA |
U.S.S. Alderbaran | Chester | PA |
U.S. Sanitary Manufacturing | Monaca | PA |
USS Cont 2567 | McKees Rocks | PA |
U.S.S. Gwin | Philadelphia | PA |
U.S.S. Hank | Chester | PA |
U.S.S. Hank Dd-702 | Chester | PA |
USS Headquarters | Pittsburgh | PA |
U.S. Signal Corps | Tobyhanna | PA |
U.S.S. Monrovia | Philadelphia | PA |
U.S. Steel | Morrisville | PA |
U.S. Steel | Ambridge | PA |
U.S. Steel | Rankin | PA |
U.S. Steel | McKees Rocks | PA |
U.S. Steel | West Mifflin | PA |
U.S. Steel | McKeesport | PA |
U.S. Steel | Berwyn | PA |
U.S. Steel | Homestead | PA |
U.S. Steel | Duquesne | PA |