Holster Information?

[HerrKaiser]

So I received this holster with a 1920 commercial Luger which an export mark. I would be more surprised if the pistol and holster had any historical connection whatsoever since this holster appears to be a Nazi holster while the pistol was sold outside of Germany. That said, the holster has markings on the back and I was wondering if any of you could give some insight on it. Firstly, is it even a Luger holster or is it one for a P.38? Secondly, does anyone know what the markings can be traced back to? Markings on the back are "FR & K. Voegels Koln-Deutz 1938" to the right of it are the typical Nazi eagle and Hakenkreuz (Swastika) with 'WaA387" underneath of it. Thank you in advance for any information you provide!!