Detailed survey of Union Pacific's freight cars from the late steam and early diesel era. Each class is covered in meticulous detail with descriptions (including mechanical features, painting and lettering styles), history, black and white photos, and schematic diagrams. There is also a complete roster of all freight equipment used between 1946 and 1951. Assignments of auto cars for 1949 show where the cars were used. Illustrated throughout with over 200 photos, most never before published, showing builder and action shots. Invaluable reference work for the UP modeler or fan.
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