BH-21 auxiliary transmission. Factory photo. July 19, 1951.

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Autocar engine model U90, built for US Navy, looking down on engine. Factory photo. Sept 20, 1951

Autocar engine model U90, built for US Navy, engine from left front. Factory photo. Sept 20, 1951

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Model U90, straight truck with deluxe cab and tank body Puritan Fuel Oil Co Inc , Corona, NY Nov 5, 1951

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Cummins JBS-600 diesel engine with transmission, right side view. Factory photo. Dec 3, 1951