Not economically repairable. Gun shops, gun shows, pawn shops, want ads, for sale ads, estate sales, garage sales, on line auctions.
$50
5-50 or so
Inexpensive European revolver of indifferent quality- value about $50.
Could be Sauer, Schmidt, Rohm, RG, Gecado, or any of a dozen others.
http://www.gunpartscorp.com/forum/
Numrich gun parts
Herter's imported revolvers made by Sauer & Sohn in West Germany. Try http://www.e-gunparts.com for parts.
If your local gun dealer cannot help, contact gunpartscorp.com. They have SOME parts for handguns imported by FIE.
I have a marlin little joker i will sell for parts
Gun shop, gun show, Egunparts
Parts for an H and R Sportsman Top Break 9 shot 22 cal single action revolver can be found in many ways. The internet, especially gun websites, sell parts for different guns. Also, gun shops can provide certain parts for this type of gun. Calling in advance to find if parts are in stock would be best.
You can find out how old an HS Model 10 22 revolver is by taking it to a local pawn shop or gun dealer. You can also use publications that are written to help identify the age of a revolver.