Descriptive catalogue of wrought-iron bridges
Subtitle: fire-proof columns and floor girders, wrought-iron roof trusses, wrought-iron turntables, pivot bridges, park bridges, suspension bridges, columns, links, and bridge bolts
By: manufactured by the Keystone Bridge Company
Published: 1874
Place of publication: Pittsburgh, Pa
Language: eng
Number of pages: 46
Subjects: Bridges; Catalogs; Railroad bridges