Cooey Model 840 Serial Number Lookup Jun 2026

If your Cooey Model 840 lacks a serial number, it was made between 1965 and 1968. How to Find Your Serial Number

The Cooey Model 840 is a highly collectible firearm that requires a thorough understanding of its serial number and history. By decoding the serial number and using online resources, you can learn valuable information about your firearm's production date, model, and configuration. Whether you're a seasoned collector or a new enthusiast, a Cooey Model 840 serial number lookup is an essential step in understanding and appreciating this iconic firearm.

Winchester purchased Cooey in 1961 but continued to use up existing parts and barrel stamps.

Original finish and un-cracked wooden stocks preserve the value best. Cooey Model 840 Serial Number Lookup

Often, you will only find proof marks, caliber markings (12ga, 16ga, 20ga, .410), and the manufacturer stamp ("H.W. Cooey Co. Ltd.") rather than a sequential number. How to Date Your Cooey 840

: These are late production models, manufactured after Winchester acquired the company. 2. Check the Barrel Stamp

Cooey firearms were built as "working man's guns." While they are incredibly reliable and carry immense nostalgic value in Canada, they are not highly expensive investments. Depending on the condition, gauge (with .410 and 16-gauge fetching premiums), and wood quality, a Cooey Model 840 typically appraises between . How do I safely clean a Cooey 840 to check for markings? If your Cooey Model 840 lacks a serial

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

Since a precise lookup isn't possible, you can use a process of elimination to narrow down the production period of your gun. Here is a step-by-step guide:

Note on "CE" prefixes: Many collectors note that "CE" stands for "Cooey Export" or "Cooey Canada," indicating a late-60s or 1970s production run. Whether you're a seasoned collector or a new

Following Winchester’s acquisition of H.W. Cooey Co. in the mid-1960s, the Model 84 was rebranded to the Model 840 .

Because official factory serialization logs from the Cobourg plant were largely lost or destroyed, a exact "lookup table" does not exist. However, you can narrow down the production date using physical clues on the gun. The Proof Marks and Stamps Look closely at the text stamped onto the barrel:

If your gun looks exactly like a Cooey Model 840 but has a completely different name stamped on it, you likely own a "hardware gun." During the mid-20th century, Cooey and Winchester manufactured thousands of unbranded or alternative-branded shotguns for major department stores and hardware chains. Common store-brand aliases for the Cooey Model 840 include: