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About 1973
That should be 1975
No way to tell.
Seldom exceed 75 USD
More information needed to determine model of firearm.
Seldom exceed 100 USD
Harrington & Richardson used the Prefix AT in 1983.
Not enough information provided. Need description of the revolver, including any and all markings on barrel and receiver, type of action and model if available.
1973
How old is my Topper 88 HARRINGTON AND RICHARDSON GUN serial number
"P" prefix indicates 1953
Sorry- not enough info to answer. The 7 shot revolvers were early guns- I have one made about 1900.