Weird holster

[Vlim]

Going through my box of holsters, I rediscovered this weird one that I purchased many years ago.

It clearly has the imprint of a P08-style frame, including the safety catch in both positions.

The contour of the holster itself also unmistakingly shows the outlines of a luger pistol with a 15cm barrel length.
You can make out the 'bump' at the rear where the higher Navy rear sight would be.

It's well made and has some age to it.

Any opinions on this holster? Too bad I don't have a proper Navy to match it with