Check on the butt.
Impossible to answer without the serial number.
Feb.1984 with the serial number that you have provided.
25-450 usd
100-450 or so
1974
50-600 usd
@1984
1956-1957
@ 1970
The Standard Catalog of Smith and Wesson, 3rd Edition, by Supica and Nahas.
1980
74