The Smith and Wesson model 6906 was made from 1988-1999.I am afraid that is the best I can do.You may want to contact smith and Wesson and see if they can be more accurate in terms of a production date.
Contact S&W or get a copy of Standard Catalog of Smith and Wesson by Supica and Nahas.
@ 1965
1967
Impossible to answer without a serial number.
Impossible to answer without the serial number.
@ 04
1977
1955
When was 38 smith and Wesson serial number 172095
Smith and Wesson is the make.
Standard Catalog of Smith and Wesson
Your serial number was used by Smith and Wesson for the models 10,12,13,45,64,65,547.It dates this serial number to the year 1979.