id give you $100
No way to tell.
50-100 USD or so
10-130 usd
60-100 yrs old
That is the serial number- not a model number. Try again.
Need much more info - model number, physical description, caliber, type of firearm.
1973
How old is my Topper 88 HARRINGTON AND RICHARDSON GUN serial number
More information needed to determine model of firearm.
Harrington & Richardson used the Prefix AT in 1983.
"P" prefix indicates 1953
25-60 USD or so