SP Southern Pacific In Color, Volume 4: The Tunnel Motor Era (1971–1980) by Jim Boyd is a richly illustrated railroad history documenting Southern Pacific during the famed Tunnel Motor era. Published by Morning Sun Books in 2003, this first printing hardcover features outstanding full-color photographs, detailed historical captions, and comprehensive coverage of Southern Pacific locomotives and operations throughout the 1970s. An excellent reference for Southern Pacific enthusiasts, railroad historians, and model railroaders. The original dust jacket is included.

This hardcover book with dust jacket is in overall very good condition. The pages are clean with no visible writing, underlining, foxing, stains, or loose pages. The binding is tight, and the dust jacket shows light shelf wear consistent with normal handling.

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