Original Ford Motor Company letter dated January 11, 1954. Ford Tractor and Industrial Engine Division, Highland Park, Michigan letterhead. Addressed to Norcross & Cox Tractor Company, Clinton, Missouri. Discusses fitting a power takeoff to the Ford Model 120 industrial engine.
References Rockford Clutch power takeoff. Ford part numbers referenced include 8NNN-6392, 8NNN-7275-B and drawing/print SK-8NNN-6985-K.Tremendously large vintage engineering print for "Housing Ass'y Flywheel". Drawing identifies Grade B cast iron, SAE specifications and Ford engineering dimensions.