Cooey Model 840 Serial Number Lookup

If your shotgun lacks a serial number, you can still estimate its age based on the branding and physical markings found on the barrel or receiver.

Collectors often don't need a serial number to date a Cooey 840. They look at the sights.

: Researcher Scott Jamieson is widely cited as the leading authority on Cooey history and has conducted extensive work to catalog these firearms for a definitive reference book. for different gauges of the Model 840?

Cooey serial numbers were typically 4 to 6 digits stamped into the metal without letters (e.g., 12743 ). Some very late Winchester-era models have an "M" prefix. Cooey Model 840 Serial Number Lookup

Units stamped were made before Winchester's 1961 takeover.

Unlike a car VIN, Cooey serial numbers only allow you to estimate within a 5-to-10-year window . There are no month/day records.

A: No. The closest thing is the "Cooey Serial Number Project" run by private collectors on Rimfire Central, but it is not searchable by the public. You must ask a moderator to check their list. If your shotgun lacks a serial number, you

). Collectors and historical researchers generally believe this is actually a poorly stamped "0" (zero) rather than a meaningful letter code. Assembly vs. Serial Numbers

If your rifle does have a serial number, you need to know where to look. Cooey was inconsistent with placement.

: Though technically the Model 84 period, any gun stamped with "H. W. Cooey Machine & Arms Company" predates the Winchester buyout. Post-1961 (Winchester Era) : If the receiver is stamped "Winchester-Western (Canada) Limited," it was manufactured after the Olin/Winchester acquisition. The "C" Suffix Confusion : Researcher Scott Jamieson is widely cited as

In most jurisdictions, it is perfectly legal for these vintage shotguns to be serialized as "NSN" (No Serial Number) on registration or transfer forms, provided they were manufactured that way.

If your rifle lacks a serial number, it is not a defect—it is a badge of authenticity from the golden era of Canadian firearms manufacturing.