Call S&W and they will tell you.
1974
74
I can say that your smith and Wesson model 15-2 .357 magnum was made between the years 1961-1966.
You need to provide the number from the butt of the revolver. That is the sn.
1880
1980
Check on the butt.
1980
1947
K 7981 smith&wesson
No serial number provided.
No serial number provided.