1992-1994
82-88
77-88
@1971
Your serial number dates your Smith and Wesson model 59 to the years 1977-1978.
Mid to late 60s
1952 give or take
1950-1969 for exact information, it is worth the price to get a factory letter from Smith & Wesson
Need a detailed description of all markings. No such sn for the Model 38
91-99
there are dedicated web sites for colt and Winchester manufacturing dates etc. Google it
The Smith and Wesson model 10-7 was made in the year 1977.