Need a detailed description of all markings and features.
No such serial number in Smith and Wesson data.
Check the butt.
1980
1974
1980
No serial number provided. Serial # 426742
You can not tell the model number with just the serial number.
You will have to provide the serial number and a detailed description of the weapon.
Look on the butt of the revolver.
@1969
On the butt.
Impossible to answer without the serial number.