Dating the Smith & Wesson Model 1
Without a doubt, this is the most common question that I get asked. A reasonable estimation can be made of a Model 1’s age based on the issue and the gun’s serial number, which is always located on the bottom of the grip.
The following serial number tables can be used to further estimate the gun’s age. Please note that these serial number ranges are just estimates.
For a more accurate date, you’ll need to request a Letter of Authenticity from the Smith & Wesson Historical Foundation.