Category:Keystone Bridge Company
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American bridge building company | |||||
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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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IMG 3971 Keystone Bridge Co plate.jpg 600 × 800; 87 KB