"M" prefix indicates 1952
"P" prefix indicates 1953
M prefix to serial # = 1952 manufacture. Jim
Harrington & Richardson used the Prefix AT in 1983.
1973
How old is my Topper 88 HARRINGTON AND RICHARDSON GUN serial number
An H&R Sportsman with that serial number was made circa 1937-38. Value depends upon condition: Exellent $300 +/- $25, down to fair $125.
1987
May not be marked, depending on age.
1971
Serail number and features
1980
The value of a Harrington and Richardson 7mm Remington mag serial number 52897 depends on its condition. This gun in excellent condition is valued between 125.00 and 200.00 as of 2014.