Aluminium Waffen-SS EM/NCO belt buckle marked RZM 155/39 ᛋᛋ

Nice aluminium Waffen-SS EM/NCO buckle in good, combat used condition. The belt buckle is clearly marked RZM 155/39 ᛋᛋ which indicates production by Assmann & Söhne, Lüdenscheid in 1939. The buckle shows traces of usage and is a clearly combat used and as found example! Textbook early produced aluminium Waffen-SS belt buckle!