Single OT 'Hauptfrontführer/Hauptbauführer' Collar Tab (Kragenspiegel) as intended for a member within the OT - 'Organization Todt'. The OT was established in June of 1938 when the Inspector General for Roads, 'Dr. Fritz Todt', was tasked with the construction of the 'West Wall'. This is a collar tab as introduced in 1943. The collar tab is showing three rank bars indicating the rank of 'Hauptfrontführer' or 'Hauptbauführer', neatly machine embroidered on a olive drab wool backing. Nice original example in very good condition!