Original 1927-50 Hudson Dealer Numerical Parts Interchangeability Record Book. This Dealer Manual shows all available replacement Hudson Part Numbers in numerical order with Description and Models on which it is used. It does not contain any Illustrations. It is dated March 1, 1950. This hard to find Book will make a very useful tool for the Hudson Owner or Collector. It is in good condition with normal wear, blemishing and soiling from use in a Dealership [see photos].