Serial Number Research & Dating Flashcards

What is a 'factory letter' in the context of firearm appraisal, and which manufacturer is most famously associated with them?

Answer: An official archive document certifying a firearm's original configuration and shipping date, most associated with Colt

A Colt factory letter is an authenticated document from the Colt Archive confirming the original configuration, caliber, barrel length, finish, and shipping information of a specific revolver or pistol, and is highly valued for authentication.

Winchester factory authentication letters for pre-64 lever-action rifles can be obtained from which institution?

Answer: Cody Firearms Museum at the Buffalo Bill Center of the West

The Cody Firearms Museum in Cody, Wyoming holds the original Winchester factory records and offers letter services authenticating original configurations and shipping dates for Winchester firearms.

Smith & Wesson revolvers manufactured before approximately 1958 used what type of serial number system that differs from post-1958 practice?

Answer: Model-specific serial number series that restarted at 1 for each model

Pre-1958 S&W revolvers used separate serial number series for each model line (e.g., Hand Ejector series), whereas post-1958 production adopted a unified alphanumeric prefix system across all models.

When researching a Browning firearm's date of manufacture, an appraiser would primarily consult:

Answer: Browning's own date-of-manufacture lookup service and reference guides such as the Standard Catalog of Browning Firearms

Browning publishes a date-of-manufacture lookup by serial number on its official website, and reference guides like the Standard Catalog of Browning Firearms provide complementary production tables for appraisers.

A Luger pistol described as having 'all matching numbers' but a 'non-matching magazine' should be appraised how compared to a fully matching example?

Answer: At a discount, since the magazine is a serialized component and its mismatch reduces originality

On collectible military Lugers, magazines are serialized and considered part of the matched set; a mismatched magazine reduces the 'all matching' premium, though the penalty is smaller than a mismatched frame or barrel.

Proof marks found on European firearms, when combined with serial number research, primarily help an appraiser determine:

Answer: Country of manufacture, approximate date of proof, and whether the firearm passed government safety testing

European proof marks are government-applied stamps indicating the country's proof house, the year of testing, and that the firearm passed official pressure tests, enabling appraisers to cross-reference with serial numbers to establish provenance and date.

What does it mean when a firearm appraisal report notes that a gun's serial number places it in a 'documented military contract block'?

Answer: The serial number range is known to have been produced under a specific government contract, potentially adding provenance and collector value

Documented contract block serial numbers link a firearm to a specific military purchase order, which adds traceable provenance and often a significant collector premium, especially for WWII-era military arms.