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Cooey Model 840 Serial Number Lookup ((exclusive)) Access

The Cooey Model 840 is a staple of Canadian firearms history, representing a break-action, single-shot shotgun built for reliability and affordability. Produced from 1967 to 1979 under Winchester-Western (Canada) Limited after they acquired the H.W. Cooey Machine & Arms Company, the 840 is the successor to the earlier Model 84.

Finding definitive date information for a Cooey Model 840 through serial number lookup is notoriously difficult, as comprehensive company records do not exist. However, identification is possible through physical markings and design changes. Understanding the Cooey 84/840 Evolution Model 84 (1948–1967): Originally produced by H.W. Cooey in Cobourg, Ontario. Model 840 (1967–1979):

Following Winchester’s takeover in 1961, the design was updated and rebranded as the Model 840 in approximately 1967. Key Differences:

The 840 typically introduced cheaper materials (birch/maple stocks rather than walnut) and, in some cases, 3-inch chambers. Serial Number Locations

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:

Removed the shoulder stock to find the number, if it is original to the gun.

Note: Many numbers found on Cooey 84/840s are assembly numbers used to match barrels to receivers during production rather than unique serial numbers. Dating a Model 840 (Post-1967)

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

The Cooey Model 840 was produced between 1967 and 1979. Direct serial number lookups are challenging because no centralized, official database exists for annual Cooey production. How to Identify Your Cooey 840

Because specific serial-to-year records are missing, collectors rely on markings and physical features to date these firearms:

Cooey Model 840 Serial Number Lookup: A Collector’s Guide If you’ve inherited a rugged single-shot shotgun or found a deal on a "Made in Canada" classic, chances are you’re holding a Cooey Model 840. These firearms are staples of Canadian hunting history, known for their simple break-action design and reliability.

However, if you are trying to perform a Cooey Model 840 serial number lookup, you’ve likely run into a common frustration: many of these guns don't have serial numbers at all. Here is everything you need to know about dating your Model 840 and understanding its history. The Short Answer: Why You Can’t Find a Serial Number

Before 1968, firearm regulations in Canada and the United States did not strictly require serial numbers on rimfire rifles or shotguns. Since the Cooey Model 840 was designed as an affordable, utility firearm, the H.W. Cooey Machine & Arms Company (and later Winchester-Western) often omitted them to keep production costs low.

If your barrel and receiver are blank, don't worry—your gun isn't "missing" its ID; it simply never had one. Identifying the Era of Your Cooey 840

Since a standard serial number database doesn’t exist for most Cooeys, collectors use rollmarks (the stamps on the barrel) to narrow down the manufacturing date. 1. The Winchester Era (Post-1961)

The Model 840 was actually a transition model produced after Winchester-Western (Canada) Ltd. purchased Cooey in 1961. Unlike the earlier Model 84, the 840 features a more modern aesthetic, often with a square-shaped forearm.

Check the Barrel: Look for the text "Winchester-Western (Canada) Limited." If this is present, your gun was made between 1967 and 1979 at the Cobourg, Ontario plant.

The "Winchester 370" Connection: The Model 840 is virtually identical to the Winchester Model 370. If your 840 has a serial number, it was likely produced toward the end of the production run (late 70s) when numbering became more standardized for export. 2. Proof Marks and Letters

Occasionally, you will find a small letter stamped near the breech or on the trigger guard. While not a serial number, these are often factory proof marks. 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

Even without a serial number to track its exact "birthday," the Model 840 is highly regarded for its:

Versatility: It was chambered in 12, 16, 20, and 28 gauge, as well as .410 bore. Durability: The action is famously overbuilt.

Automatic Ejectors: Unlike many budget single-shots, the 840 is known for its strong ejection, snapping spent shells well clear of the shooter. How to Value a Cooey 840 Without a Serial Number Cooey Model 840 Serial Number Lookup

Since you can't use a serial number to prove "rarity," value is based entirely on condition and gauge:

Common Gauges (12 & 20): Typically sell for $150 – $250 CAD depending on wood condition and bore brightness.

Rare Gauges (.410 & 28ga): These are highly sought after by collectors and can fetch $300 – $500+ CAD.

Condition: Check for "case coloring" on the receiver. If the rainbow-like finish is still vivid, the value increases significantly. Final Tips for Owners

If you are recording the firearm for insurance purposes or your PAL (Possession and Acquisition License) records and there is no serial number, simply list it as "NSN" (No Serial Number). This is a standard and legal designation for vintage firearms of this era.

The Cooey Model 840 may not have a digital paper trail, but it carries a massive legacy. Whether it’s a family heirloom or a bush gun, it remains a functional piece of North American firearm history.

Are you looking to refinish the wood or find replacement parts like a firing pin for your 840?

The cellar smelled of damp earth and old oil, the unmistakable perfume of a estate sale cleanup. Elias pushed aside a stack of warped National Geographic magazines to reveal the prize: a battered gun case.

"Find anything good?" called out his business partner, Sarah, from the top of the stairs.

"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.

Elias racked the action. Clack-clack. It was smooth. Too smooth for a gun that looked this rough.

He turned the firearm over, looking for the maker’s mark. On the receiver, faint but legible: COOEY. And beneath it, the model number: 840.

"It's a Cooey," Elias shouted up. "Model 840. Canadian made. Probably mid-century."

" worth anything?"

"It depends," Elias said, pulling a penlight from his pocket. He tilted the barrel toward the light, searching for the string of digits that dictated whether this was a fifty-dollar wall-hanger or a rare collectible.

He found it stamped near the receiver. The serial number was faint, obscured by a layer of cosmoline and surface rust. He squinted, wiping it gently with his thumb.

F 12784.

Elias climbed the stairs, the shotgun broken down over his shoulder. "I need to run a lookup. Cooeys are tricky. They were the working man’s gun. A lot of them didn't even have serial numbers until the late sixties. If this one has one, and if it’s a low number or a specific prefix, it could tell us exactly when it left the factory in Cobourg, Ontario."

Back at the office, Elias sat in front of his dual-monitor setup. The Cooey Model 840 was a staple of Canadian hunting camps for decades—simple, reliable, and affordable. But information on specific production runs was notoriously scarce. Unlike Winchester or Remington, which had meticulous ledgers, Cooey records were spotty.

He navigated to a specialized firearms archive forum, a digital backroom where collectors traded scans of old catalogs and shipping manifests. He typed into the search bar: Cooey Model 840 Serial Number Lookup.

The results were a mess of conflicting data. He clicked on a sticky thread titled "The Great Cooey Database Project." The Cooey Model 840 is a staple of

Elias rubbed his temples. The internet was a labyrinth. He needed a concrete reference. He pulled a heavy, binder-clipped book from the shelf behind him: The Collector's Guide to Canadian Arms.

He flipped to the section on the H.W. Cooey Machine & Tool Company. There was a chart, hand-drawn by a historian in the 90s. It listed the prefix codes.

The entry for 'F' stopped him cold. There was an asterisk.

Note: The 'F' prefix was not a standard chronological run. It was allocated to a special contract in 1964, two years after Winchester acquired the company. These were "transition" guns—Cooey actions stamped with the standalone name, but built with higher-grade Winchester steel specs for a government contract (Department of Lands and Forests).

Elias looked at the number again. F 12784.

He cross-referenced the number on a database maintained by a collector in Alberta. He typed in the prefix and the digits. The server chugged.

Result found.

Serial: F 12784 Shipped: November 12, 1964 Destination: Northern Service Depot, Thompson, Manitoba. Notes: "Winter Issue" - Chrome bolt, modified stock for cold weather gloves.

"Sarah," Elias said, his voice dropping to a whisper. "Look at this."

Sarah rolled her chair over. "What is it?"

"It's not just a shop gun," Elias said. "This wasn't sold in a hardware store. It was a government contract shotgun. This was likely issued to a game warden or a surveyor in Northern Manitoba. That explains the smooth action—it wasn't used by a weekend hunter; it was maintained by a professional who needed it to work at forty below zero."

He scrolled down further. A user had uploaded a photo of a similar 'F' series gun. The description detailed a recall that happened in 1965. A batch of the wood used for the stocks had a defect—it was prone to cracking at the wrist if not properly oiled.

Elias turned the gun over and looked at the wrist of the stock, where the neck met the receiver. It looked pristine. But he took a magnifying glass to it.

There it was. A hairline fracture, expertly repaired with period-correct epoxy. Someone had loved this gun. Someone had fixed it.

"So?" Sarah asked. "Is it worth millions?"

"No," Elias smiled, closing the book. "It's worth about three hundred dollars to a collector. But the story is worth more."

He looked at the scarred wood and the faint serial number. The lookup hadn't just given him a date; it had given the gun a past. It had sat in a cabin in Thompson, Manitoba. It had survived a recall. It had been carried by someone who worked the traplines or the forests.

"Label it," Sarah said, standing up. "Put it on the site for four hundred. Tell the story about the Northern Service Depot."

Elias nodded, but he hesitated before typing the listing. He ran his hand down the barrel.

"Actually," he said. "I think I'll keep this one."

"Why?"

"Because," Elias said, opening the database tab one last time to screenshot the serial number lookup for his personal file, "it feels like it still has some work to do."

Locating a definitive serial number lookup for the Cooey Model 840

is a common challenge for collectors, as comprehensive factory records for Cooey firearms are generally unavailable. Because the Model 840 was produced during and after the transition when Winchester

acquired Cooey in 1961, dating these shotguns often relies more on physical markings and minor design changes than on a central database. 1. Where to Find the Serial Number

If your Model 840 has a serial number, it is typically stamped in several specific locations. Note that some late-production Cooey shotguns may not have serial numbers at all, as they were not always required by Canadian law during their peak production years. On the right or left side of the action. Underneath the wooden fore-stock/fore-end. Butt Plate:

Stamped or chalked on the wood underneath the butt plate or shoulder stock. 2. Identifying Your Model 840’s Age

Since a direct lookup tool does not exist, you can narrow down the manufacturing date by examining these key physical traits: Pre-1961 (Model 84) 1961–1967 (Model 84/840 transition) 1968–1979 (Model 840) Stamped "H. W. Cooey Machine & Arms Company" Stamped "Winchester-Western (Canada) Limited" Continued Winchester-Western stamp Model Name Labeled "Model 84" Often labeled "Model 84" but with Winchester stamps Labeled "Model 840" Stock Material Primarily Walnut Transition from Walnut to Birch/Maple Birch or Maple (often with stampings on the stock) Hammer Style Standard spur Transitioning styles Up-curved hammer spur (similar to Winchester 37A) 3. Deciphering the Numbers Four-Digit Numbers:

Many early Model 84/840s feature simple four-digit serial numbers, sometimes accompanied by a small "cartouche" or symbol above the numbers. Letter Suffixes: Some owners have reported serial numbers ending in a

(or a "0" that looks like a C), which may indicate specific production runs or export variants, though no official Winchester records have confirmed this. Estimated Production: Total production for the Model 84 and 840 series exceeded 1.9 million units between 1947 and 1979. 4. Expert Resources for Specific Inquiries

If you need an exact year for insurance or appraisal purposes, the following resources are frequently cited by the Cooey community: Expert Researchers: Collector and author Scott Jamieson

has conducted extensive research on Cooey serialization and is a primary contact for owners seeking historical data. Valuation Services: Sites like Hallowell & Co. Winchester Club of America

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?

Step 2: Decoding What You Find

Because a comprehensive Cooey Model 840 serial number lookup database does not exist online or via government registries (the Canadian Firearms Registry was destroyed in 2012), you must use indirect methods to date your gun.

The "Cartridge Guide Ring" Test

The Cooey 840 evolved its feed ramp design.

What You’ll Actually Find on the Rifle

Pick up your Cooey 840 and look at the left side of the receiver. Here’s what to expect:

| Feature | What it means | |---------|----------------| | No number at all | Manufactured pre-1961 (most common) | | A 5-6 digit number (e.g., 123456) | Post-1961 production under Winchester ownership | | “Cooey Model 840” stamped | Pre-1961 Canadian production | | “Winchester Model 840” with serial | Post-1964 production |

A Brief History of the Cooey 840

Before diving into the serial number lookup, it’s critical to understand the manufacturer’s timeline. The Cooey Machine & Arms Company was founded in 1919 by John Cooey in Cobourg, Ontario. The Model 840 was introduced in the late 1930s as an improvement over the earlier single-shot models (like the Model 39 and 84).

The Model 840 is a single-shot, bolt-action .410 bore shotgun (though rare 20-gauge versions exist). It is famous for its "snap-action" bolt release and lightweight design. Production continued through World War II and into the post-war era until 1961, when Cooey was purchased by Olin Industries—the parent company of Winchester-Western.

Crucial Fact for Your Lookup: Prior to the Winchester acquisition in 1961, most Cooey firearms did not have a serial number. Canadian law did not require serial numbers on low-cost utility firearms for decades. If your Cooey 840 has a serial number, it was likely manufactured after 1961, or it was an export model to the United States (where serialization became mandatory under the 1968 Gun Control Act).

Cooey Model 840 Serial Number Lookup

Interpreting the marking format

If You Absolutely Must Look Up a Serial Number

If your Cooey 840 does have a serial number, here’s where you can try:

  1. Winchester Historical Records – Cody Firearms Museum (Cody, Wyoming) holds Winchester production records. For a fee, they may search for your serial if it’s a post-1964 Winchester-marked 840.
  2. Canadian Gun Nutz forums – Experienced collectors maintain informal serial lists based on owner-reported data.
  3. RCMP Canadian Firearms Program – Only for legal registration (not dating). Post-2022, many non-restricted rifles like the 840 no longer require registration.