Instead, collectors use and receiver stampings to date these firearms. Step 1: Locate the Serial Number (If Present)
Because the Model 840 has a specific production window, you can determine its age based on the company's ownership history. Production Years Key Identifying Features Model 84 1948 – 1967 Cooey Model 840 Serial Number Lookup
Visible only when the shotgun is broken open or the barrel is removed. Instead, collectors use and receiver stampings to date
Introduced as a more economical version; often used birch or maple stocks and 3" chambers. Cooey Model 840 Serial Number Lookup