Need the serial number to answer the question
1970 to 1972
No sn = no way to answer. 50-500 uSD
42 years old
100-800 USD; can't date without a serial number.
Look on the back side of the wooden grips, the month and year should be stamped on one of them.
@ 48 yrs old; 50-500 USD
Smith and Wesson will tell you if you call them
The S&W Model 28 "The Highway Patrolman" was produced c. 1954 - 1986 with 8,427 manufactured the first year. There were several variations. The prefix of N was added in 1969. The numbers inside the yoke may help determine appx. yr. ...28 (1957), 28-1 (1960), 28-2 (1961) Hope this helps.
N Frame 357 (Highway Patrolman) made from 1954-1986. Model number designation started in @ 1957. Your low sn should make it from the 54-57 time frame. You need to call S&W
Email smith and Wesson for the answer
n40000 series was made around 1977/78. n40000 series was made around 1977/78. Guns with serial number N1-N60000 was made between 1970-1972. Hope this helps. Best TrophyMatch45