Harrington & Richardson used the Prefix AT in 1983.
How old is my Topper 88 HARRINGTON AND RICHARDSON GUN serial number
1980
$100
Less than $100.
Typically a used topper will run between $50 and $150 depending on condition.
About $75-$125, depending on condition.
Made between 1962-1974. Model number changed to 058 in 74.
Since it has a serial number, it was made after 1968. They were made at least through the 1990's, but I know of no source of serial number dating info for recent H&R guns. * Harrington & Richardson manufactured the shotgun in 1974.
1973
"P" prefix indicates 1953
Since you do not say, whether your Harrington & Richardson is a pistol, rifle or shotgun and you do not show a letter prefix to the serial number, I can only give you limited information based on a Model 48 Topper Single Shot Shotgun which was manufactured for a period of 14 years between 1943 and 1956. I hope this helps, until you can supply more information on your shotgun.
To determine the age of a Harrington & Richardson (H&R) Topper model shotgun, you can check the serial number, which is typically located on the underside of the receiver. H&R began using a consistent serial number system in 1960, so shotguns made before that year may not have serial numbers. Additionally, consulting H&R production records or reference guides can provide specific information based on the model and serial number. Finally, examining the design features and markings can also help you estimate the age of the shotgun.