Directory of Keystone Bridge Company Resources

Formed in 1865 by Andrew Carnegie.

Resources in This Category

Descriptive Catalogue of Wrought-Iron Bridges

http://quod.lib.umich.edu/cgi/t/text/pageviewer-idx?c=moa;cc=moa;rgn=full+text;idno=AJR3428.0001.001;didno=AJR3428.0001.001;view=image;seq=00000001
Facsimile of the company catalogue published around 1874.
Historic Bridges of the Midwest

http://bridgehunter.com/category/builder/keystone-bridge-co/
Photographic records of three bridges constructed by Keystone.
Keystone Bridge Co. v Phoenix Iron Co.

http://supreme.justia.com/us/95/274/case.html
Full text of case before the U.S. Supreme Court in 1877. Concerns the infringement of two patents belonging to the company.

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