Made from 1965 to 1979. It features a sleek, modernized, slab-sided receiver. Value and Collectibility
Manufactured between roughly 1965 and 1967. Serial Number Present: Manufactured between 1968 and 1979.
can sometimes provide more granular data if you provide photos of your specific markings. part replacement How to decode the serial number on a Cooey 840?
In some cases, numbers were stamped or even chalked under the butt plate/shoulder stock. Important Note: Cooey Model 840 Serial Number Lookup
Performing a serial number lookup on a Cooey Model 840 requires access to reference materials, online databases, or direct communication with firearms experts. Here are some steps to follow:
| Feature | Approx. Era | |---------|-------------| | “Cooey Machine & Arms Co.” on barrel | Pre-1961 | | “Winchester-Western Corp., Cobourg, Ont.” | 1961–early 1970s | | Plastic trigger guard or buttplate | Later production (late ‘60s–’70s) | | Model marked as “840” alone (no “Cooey”) | Post-1965 |
⚠️ Even with a number, you likely won’t find a neat database like a car VIN lookup. Production records for Cooey were often handwritten, scattered, or lost after Winchester closed the Cobourg plant. Made from 1965 to 1979
Occasionally, you will find a small letter stamped near the breech or on the trigger guard. While not a serial number, these are often . While there is no definitive public ledger for these codes, they generally signify the inspector or the specific assembly line. Why the Model 840 is Special
"Maybe," Elias muttered, unzipping the canvas. Inside lay a pump-action shotgun. It was utilitarian, lacking the high-gloss finish of modern firearms, but it had a certain rugged charm. The wood was dark with age, the bluing on the barrel worn to a soft grey.
There it was. A hairline fracture, expertly repaired with period-correct epoxy. Someone had loved this gun. Someone had fixed it. Serial Number Present: Manufactured between 1968 and 1979
Even without a definitive serial number database, you can narrow down the production date of your Cooey Model 840 to a specific era by acting like a forensic firearms historian. Check the following physical attributes on your shotgun: Step 1: Search for the Serial Number
Some Model 840 shotguns feature a letter prefix before the numbers:
Winchester bought Cooey in 1961 and updated the manufacturing line. The barrel stamp changed to "Winchester-Cooey Ltd."
Winchester Western (Canada) Limited bought Cooey in 1961.