I've been told that mine (in very good condition) was worth about $150.00 however, I just ran across an dealer's ad on the web which lists it as worth $360.00. My serial number is Hxxxx, which indicates, I've been told, that it was manufactured in 1950. It's nice, though a little heavy, and it's quite accurate in the 30-50 feet range.
1941
"P" prefix indicates 1953
You will have to contact H&R 1871 Inc. to find out.
the Iver Johnson website has some sn info IIRC
The value of a Harrington & Richardson Sportsman .22 caliber double action revolver, such as the one with serial number K3629, can vary based on its condition, age, and market demand. Generally, prices for these firearms range from $150 to $400. It's best to consult recent sales data or a firearms appraiser for a more accurate estimate specific to your revolver's condition and any unique features it may have.
About $100.
1940's-1950s.
Try Gun Parts Corp
25-175 usd
Have you tried a web search? Local Library? Do a web search on Harrington and Richardson Books and you will find some sources.
50-100 USD
1930's-40's.