Ron,
I don't know if you will read this post since it is quite old, but a friend of mine who is not a collector at all, gave me a 1920 Comm. in 7.65, with GERMANY stamped on it. He showed me the capture papers his father brought back (with some other rifle he is keeping), and the holster this pistol was in. He told me I could have the holster too, but his Dad had "modified" it a bit and I didn't want it. This all happened about 31 yrs ago. I still have the pistol. At the time I thought it quite strange that a soldier would be carrying a .30 cal Luger made for export. Although, at the end of the War many things were pressed into service!!
Dave