Cooey Model 840 Serial Number Lookup Jun 2026

For example, a typical late 840 serial might look like A12345 . What does the "A" mean? Possibly a production shift, a subcontractor batch, or a Tuesday morning run in Cobourg. Nobody knows for sure.

Metric measurements or specific choke designations point to later 1970s production. Cooey Model 840 vs. Cooey Model 84

If you are looking at your serial number:

Generally indicates production right around the 1968–1970 transition period. 5. Identifying Variants: Model 840 vs. 84

Many Model 840s do not have conventional serial numbers or were produced before Canadian mandatory registration required them, resulting in often limited or absent serial numbers. If a serial number is present, it is often found in these areas: Right side of the receiver: Often stamped toward the bottom rear. Under the fore-stock: Stamped on the barrel lug. Under the butt plate: Cooey Model 840 Serial Number Lookup

The Cooey Model 840 was produced from 1948 to 1970, with an estimated 16,000 units manufactured during this period. The serial number range for the Model 840 is as follows:

Winchester bought Cooey in 1961 and updated the manufacturing line. The barrel stamp changed to "Winchester-Cooey Ltd."

A tiny letter like a "K," "M," or "Z" stamped near the chamber may correspond to an internal factory year code, though a universally accepted conversion chart for Cobourg factory codes remains elusive. Step 4: Analyze Wood and Metal Design Variations

Official factory ledger databases no longer exist. Date Estimation: You must use physical proof and stamps. 2. Where to Find the Serial Number Check these four physical locations on your Model 840: Receiver side: Stamped on the left or right outer wall. Water table: Visible when you break the action open. For example, a typical late 840 serial might

The is a staple in Canadian firearms history . Known as the "working man’s shotgun," this single-shot break-action shotgun was produced in massive numbers and found its way into countless homes, camps, and farms across Canada. Because of its long production life and the transitional period under Winchester ownership, many owners seek to determine exactly when their shotgun was manufactured.

Markings moved from the receiver to the barrel; stocks switched to "plain" hardwood (birch or maple) with no checkering.

Cooey (and later Winchester) did not keep exhaustive public serial number records for the

In 1961, Cooey was sold to the Olin Corporation, which placed the company under the management of its Winchester-Western division. This acquisition marked a massive shift in Cooey's design philosophy. Production was moved to a new facility in Cobourg, Ontario, and several classic Cooey designs were updated to reflect Winchester's manufacturing standards. Nobody knows for sure

Because direct lookup tables do not exist, use these identifiers:

While many Model 84s lack serials, the Model 840 is more likely to have them. Common locations include: Check the left or right side of the action.

However, their value lies in their utility and sentimental worth. The sub-gauges, specifically the and .410 bore , command a higher premium among collectors because they were produced in much smaller quantities than the standard 12 and 20 gauge models. Tips for Maintaining Your Cooey 840