NSDAP Membership Badge 'RZM M1.25'

NSDAP Membership Badge (Parteiabzeichen). The badge is a nice enameled example, it has a nice age patina and has never been cleaned nor polished, the badge is showing a darkened age-patina and scratches caused by usage and wear. The badge is maker marked with RZM (Reichszeugmeisterei) 'M1.25' (rare marking), indicating production by the company of 'Rudolf Reiling' from Pforzheim. The badge is of course complete with its original functional pin/catch construction. Nice early example in good used condition!