This was issued in 1976 (issue price was $325). It is worth $750-800 if unfired and with box.
The smith and wesson model 18-3 was made from 1967-1976.
From 1957-1976
1976
1976
1976
1975-1976
1976
@1976
With the serial number that you have provided,your Smith and Wesson model 39-2 was made in 1975-1976.
The smith and wesson model 19-3 was made between the years 1967-1976.
I can say that the Smith and Wesson model 18-3 was made from 1967-1976.