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.
Usually it means "Smith & Wesson"
No engineering changes have been made.
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....