Luftwaffe EM/NCO's blue coloured steel belt-buckle that comes on its original leather tab (Koppelschloß mit Lederwiderhalt). Originally the EM/NCO’s buckles were produced with a silver finish until a blue/grey version was introduced around mid-1940, and a tropical olive drab version was introduced in late 1940. Nice blue-grey painted steel example, both the buckle (R.S.& S.) and the leather tab are nicely maker marked by the company of 'Richard Sieper & Söhne' from Lüdenscheid and dated 1940. The buckle is showing normal traces of usage. Nice original buckle in good condition!