"It's a Cooey," Elias shouted up. "Model 840. Canadian made. Probably mid-century."
If your rifle has a serial number, it was almost certainly made , when Winchester (which had purchased Cooey in 1961) began applying serial numbers for export or post-1968 U.S. market compliance. Cooey Model 840 Serial Number Lookup
Because no centralized, public database exists for Cooey serial numbers, owners must rely on physical markings and historical production windows to estimate the age: "It's a Cooey," Elias shouted up
Whether your Cooey 840 has a serial number or not, it remains one of the finest small-game shotguns ever built. Treat it with care, and it will likely outlast any digital database you try to search. "It's a Cooey