I need help please. I found a pistol in an old house we just got and it has H&R on the grips. There is no numbers on the barrel or name on the side of the gun.It has t3610 on the butt. It is a 9 shot 22 revolver, double action. The cylinder is held in by a pin. It had 22's in it. It also has the number 2 where the pin goes in.