In many cases, the serial number is also stamped on the underside of the barrel, the rear face of the cylinder, and the inside of the right grip panel (if original). 2. The "V" Prefix: The Mark of a Victory

If the numbers are mismatched or missing in any two locations, the revolver is a “parts gun” and loses 60% of its collectible value.

(for Safety) to indicate the new hammer block was installed. The "SV" Prefix: New production units transitioned to an "SV" serial prefix The Rare Retrofits: