Schuma Sicherheitspolizei (Internal Security Police) Cap Insignia. This example is in virtually mint- unissued condition being from a small museum hoard that I uncovered in the summer of 2018. The vet had donated his bringbacks some years ago and the museum had closed its doors.
These units were charged with maintaining order and fighting partisans in the areas of the Eastern Front.
I have a few of these left. If you order more than one I can send them in a strip uncut if you desire, just let me know.