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...