Clocks, Instruments & Militaria - Online Online
Description:
Two D.H. & C.C. Morrison's Industrial Blueprints, Dayton, Ohio, 19th century, the two blueprints for the Columbia Bridge Works, one reading in part Morrison's Iron Arch. Counter-Arched. Bridge, 1851, the other reading Morrison's Patent wrought Iron Truss Bridge, both in clear wrap on press board, lg. 28, ht. 19 1/2 to 20 in.; together with two Keuffel & Esser Co. slide rules, a 6-in. ruler, a drafting set, and slide rule manual.
Estimate $150-250
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