My Mother in Law was given a Reichs Revolver by a Texas Ranger in Nueces County, Texas in 1935. She has now given it to me, and I am doing a couple of things. The first is to find a parts source for this pistol. The ser. # is 8211, marked Erfurt with a crown above it, with 188_ below it. The unit markings are crossed out on the backstrap, but under the grip strap are 6.R.A.1.62 Any suggestions or info. available?