Category:Keystone Bridge Company

Subcategories

This category has only the following subcategory.

Media in category "Keystone Bridge Company"

The following 8 files are in this category, out of 8 total.

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  10-28-12, Keystone Bridge nameplate, MMP.jpg 2,848 × 2,136; 799 KB
  
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  1875 Keystone Bridge Company Ad (cropped).jpg 960 × 664; 277 KB
  
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  US-PA(1891) p752 PITTSBURGH, KEYSTONE BRIDGE COMPANY.jpg 930 × 551; 356 KB
  
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  Detail view of name plate on top of NW entrance to bridge. - Keystone Bridge, Spanning South Platte River, Waterton, Jefferson County, CO HAER COLO,30-WATER.V,2-1.tif 4,881 × 3,896; 18.14 MB
  
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  IMG 3971 Keystone Bridge Co plate.jpg 600 × 800; 87 KB
  
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  Photocopied January 1973 from the Keystone Bridge Company Album, 1874. NEW BRIDGE WORKS. - Baltimore and Ohio Railroad, Parkersburg Bridge, Ohio River, Parkersburg, Wood County, HAER WVA,54-PARK,2-2.tif 4,885 × 3,896; 18.15 MB
  
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  Photocopied January 1973 from the Keystone Bridge Company Album, 1874. THE KEYSTONE BRIDGE COMPANY- LUCY FURNACE. - Baltimore and Ohio Railroad, Parkersburg Bridge, Ohio River, HAER WVA,54-PARK,2-1.tif 4,901 × 3,912; 18.29 MB
  
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  Photocopied Jnauary 1973 from the Keystone Bridge Company Album, 1874. DOUBLE INTERSECTION THROUGH BRIDGES. - Baltimore and Ohio Railroad, Parkersburg Bridge, Ohio River, HAER WVA,54-PARK,2-3.tif 4,966 × 3,902; 18.48 MB