Original 1946-47 REO Speedwagon Trucks Dealer Service Parts Book. This Parts Catalog is what the Dealer used to order available Factory Replacement Parts to repair your Model 22 Truck with Serial Numbers between 26391 and 49999. It shows Part Numbers, Description, Quantity and some Illustrations for these Parts. It is in good condition for its age with some wear and blemishing from use in a Dealership [see photos]. Very rare and informative piece for the REO Owner or Collector.