I suspect that it is a 29 DWM or a late DWM Alphabet Commercial that somehow got a 1920 property stamp applied to it. Note the halo around the stamp. I have run across some cases where the 1920 stamp was used much later in the 20s but I can't recall a case with a Landjägerei pistol.
I have asked the seller for the letter suffix to try to help figure this out but have not yet received a reply.
I have given up commenting on ridiculous statements by sellers regarding police weapons. There are too many of them!
