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1. Robert A. Chesebrough's system of locomotion for elevated railroads. Patented July 14, 1868. Letter of Gen. Egbert L. Vielé, C.E.

Notes:
22 p. illus. 23 cm. and "A railroad for New York" (p. [13]-22) signed: Robert A. Chesebrough.
Data Provider:
University of Michigan. Libraries
Collection:
New York,: C.S. Westcott & co., printers, and Ann Arbor, Michigan: University of Michigan Library