Mapcase folder 54
Container
Contains 1 Result:
Keystone Bridge Company (bridge details only), 1868
File — mapcase folder: 54
Scope and Contents
The Keystone Bridge Company of Pittsburgh, Pa., manufacturers of Linville and Piper patent wrought iron bridges. Patented Jan. 14th 1862 and Oct. 31st 1865. Especially adapted to Rail Road Traffic for spans of 100 to 400 feet
Dates:
1868