the topper model 88 is a 1985 model according to the blue book of gun values
How old is my Topper 88 HARRINGTON AND RICHARDSON GUN serial number
50-150 USD
Depending on condition, $75-$125.
50-150 USD or so
Harrington & Richardson used the Prefix AT in 1983.
1980
The H&R topper model 490 JR was made from 1961-1983.I hope that you find this informative.
50-200 USD
50-125 USD
50-150 USD
About $75-90 depending on condition.