No way to answer since the serial number was not provided.
Call S&W and they will tell you.
You will have to call S&W
@1977
@ 1976
1980
S&Ws does not provide a "manufacture" date. They can give you the date that it shipped. Your question is impossible to answer without the serial number. You will have to call S&W.
No such model in the S&W line.
1955
54
No serial number provided.
late 30's to late 40's
You need to call S&W