This unit was part of the Berlin Command or Berlin Brigade depending on the period 50-70s.
6th Infantry Regiment DUI – German Made. No hallmark, and clutch back. This insignia is most likely from the days when part of the Berlin Command (Berlin Brigade). (A/4/6, All The Way!). This insignia has the solid black alligator.
Clutch back with no clutches.
Very good condition. showing use with light wear.