Hi Bill,
I really like your holster...it's a beauty !
If you have no place in your collection, I would love to buy it for mine.
pebbink@pacbell.net
The type of snap (back side) you describe is typically mated with the type of snap front shown on Bender's page 384...first thought to be only on Dutch holsters, but have been known on German holsters as well.
The snap vendor/supplier probably sold all over Europe...just a WAG.
I have a WWII German shoulder holster with this "Dutch" style snap as well...