Impossible to answer without the maker's name
1974
if it's a 38 cal. police positive, made in 1926
38 cal colt's revolver sn 94764 what year was it made?
No published sn data
Made in 1934.
No
100-300
if serial number ends with letters 'LW' then made about 1961
Call S&W and they will tell you when it left the factory.
Yes.
No.
2015