This is a field conversion of a P.08 holster to a P.38 break-away.  I am sure they had equipment repair units in the field and I suspect that they were the ones that did this.  Notice in the close-up of the top of the mag pouch how a piece was spliced on.  Very well done.  I have seen a couple of other examples but none near as nice as this one.  The waffenamt was scratched out on the back at some time.