drop forge de union switch signal (1 résultats)

Soft cover. Etat : Very Good. Softcover. Stiff paper wraps, stapled at the fold. Front cover depicts a black-and-white illustration of a nine-cylinder rotary aircraft engine manufactured at the company's drop forge plant. Measures 6" x 9", 22 pages, in very good condition. Pages 3-16 contain listings for various pieces of equipment manufactured by the company's drop forge department: gears, crankshafts, axles, levers, brake shoes, and more. Listings contain a black-and-white photograph of the part or parts in question, accompanied by a short description giving specifications and physical dimensions. Page 17 lists the company's conditions of sale. Pages 18-19 contain a partial listing of the various kinds of parts that the company can forge and has forged. Page 20 contains statistics about the Pittsburgh District, including population, land valuation, net debt, miles of roads, and more. Page 21 contains a listing of automobile statistics for the year 1919, both production statistics and consumption statistics. Covers are rubbed and smudged. Only minor wear and tear to edges and corners. Some writing in ink on front cover. Stamps on front cover indicate that this catalogue came from a catalogue library, including one with date (January 15, 1921) indicating date of receipt by the library. Pages are clean and unmarked. The Union Switch & Signal Company, a manufacturer of signaling equipment, was based in Swissvale, Pennsylvania. $25.