Try on line auctions, gun shops, gun shows, estate sales, garage sales, want ad, for sale ad, pawn shops, egunparts.
200 or so
100 or so
10-100 usd
The Harrington Richardson 20 gauge single shot shotgun, Feb. 27 1900 is valued at $75 in poor condition. In good condition, it is valued at $200.
H&R / Harrington & Richardson
$75-125, depending on condition.
1901 single barrel shotgun, washingtion
50-100 USD
50-100 USD
Have you tried a web search? Local Library? Do a web search on Harrington and Richardson Books and you will find some sources.
Ypu might try Numrich gum parts. They have the largest inventory around..Try gunpartscorp.com. Maybe they can help.
fifty or one hundred dollars.