@ 62 years old. What you have is 38 Miliary & Police, post-war. Also known as a a Pre-model 10. Model numbers were not assigned unitl 1957.
27 years old
1983-1988
Your serial number indicates that your Smith and Wesson model 59 was made in the year 1975.
31 yrs old
Not a S&W model number.
no serial number provided
Impossible to answer without a serial number.
25-33 yearws old
1977
@ 42 years old
Your serial number indicates that your Smith and Wesson model 59 was made between June of 1978,thru 1979.
36 years old