Thanks for the info. Once you told me about the Hungarian 37, I actually found a site with a picture of the holster. Looking at the holster on that site, it is a 21.
If anyone wants to bid on this holster, you can get to the auction site at
www.potofgoldestate.com. I've bought a lot from this auction house (located in Avondale Arizona) and they are good people. Click on currect auction and it is item #77. I don't have either of those pistols.