Reference Book of Parts in Connection With Inter-Locking and Block Signaling, 1894: Special Awards at World's Fair, Chicago, 1893 (Paperback) (ISBN-13: 9781022661059)

This technical reference book from the Johnson Railroad Signal Company is a treasure trove of information for rail enthusiasts and historians alike. Filled with diagrams, descriptions, and specifications of inter-locking and block signaling systems, this book provides a fascinating glimpse into the early days of railroad transportation and technology.

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