Enhanced
45 Smith and Wesson
smith and wesson.
No engineering changes.
Most likley an assembly number.
In this forum's context, Smith and Wesson, Target Sights.
No engineering changes have been made.
Usually it means "Smith & Wesson"
1961
I assume you mean Smith and Wesson. If it is a .22 caliber S&W revolver, yes.
Military and Police
Cartridge
possibly the serial number....