The Topper Model 88 is a shotgun that was produced by the H&R Firearms Company. It was manufactured primarily in the 1980s and 1990s. The "20 GA" designation indicates that it is a 20-gauge model, but the specific year of production can vary depending on individual serial numbers. For precise dating, it’s best to consult H&R's manufacturing records or a firearms expert.
the topper model 88 is a 1985 model according to the blue book of gun values
1980
50-150 USD
Check old gun catalogs
50-100 USD
Harrington & Richardson used the Prefix AT in 1983.
How old is my Topper 88 HARRINGTON AND RICHARDSON GUN serial number
50-150 USD
50-125 USD
Numrich GunParts Corp. or Browell's These are gun part dealers. Good luck
1979
50-125 USD