Stamped or chalked on the wood underneath the butt plate or shoulder stock. 2. Identifying Your Model 840’s Age
Since a direct lookup tool does not exist, you can narrow down the manufacturing date by examining these key physical traits: Pre-1961 (Model 84) 1961–1967 (Model 84/840 transition) 1968–1979 (Model 840) Stamped "H. W. Cooey Machine & Arms Company" Stamped "Winchester-Western (Canada) Limited" Continued Winchester-Western stamp Model Name Labeled "Model 84" Often labeled "Model 84" but with Winchester stamps Labeled "Model 840" Stock Material Primarily Walnut Transition from Walnut to Birch/Maple Birch or Maple (often with stampings on the stock) Hammer Style Standard spur Transitioning styles Up-curved hammer spur (similar to Winchester 37A) 3. Deciphering the Numbers Four-Digit Numbers: Cooey Model 840 Serial Number Lookup
Note: The 'F' prefix was not a standard chronological run. It was allocated to a special contract in 1964, two years after Winchester acquired the company. These were "transition" guns—Cooey actions stamped with the standalone name, but built with higher-grade Winchester steel specs for a government contract (Department of Lands and Forests). Stamped or chalked on the wood underneath the
often lack specific Cooey entries, the most reliable way to date your is through its roll stamps Branding Stamp Estimated Era "H.W. Cooey Machine & Arms" 1948 – 1961 Pre-acquisition era. Technically, these are usually " "Winchester-Western (Canada) Ltd." 1961 – 1967 The transition period after Winchester bought Cooey 1967 – 1979 The Model 84 was officially renamed the Step 3: Understanding the Serial Format have a serial number, it often follows these quirks: The "C" Mystery: It was allocated to a special contract in