You will either have to provide the serial number or call S&W.
198x.
Impossible to answer without the serial number.
@ 30 years old
@1974
Would need model name to answer.
Need the sn to answer
No known published sn data
45 years old
c.1967
The Model 16 was not made in 38 Special.
If you contact Smith & Wesson, they will give you that information.
1974.