I would guess mid 70's, but I do not have a book here to check. Post the question here http://smith-wessonforum.com/eve and you will have an answer quickly and also some good reading.
1980
No serial number = no way to answer.
No serial number provided.
Need the serial number
No serial number provided.
No serial number provided.
K 7981 smith&wesson
You will need to add the model of Smith and Wesson to your serial number to get the correct year of manufacture.
what is the serial number ????
Impossible to answer without a serial number.
@1978
@1971