Luftwaffe EM/NCO's blue coloured steel belt-buckle (Koppelschloß). 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 belt buckle. The buckle is nicely maker marked with 'N&H 1942' indicating production by the company of 'Noelle & Hueck' from Lüdenscheid in 1942. Nice original late war Luftwaffe belt buckle in good used condition!