Kriegsmarine Senior Engine NCO's Career Sleeve Insignia (Obermaschinenmaat Laufbahnabzeichen). On entering Kriegsmarine service all personnel were assigned and trained for a specific career. Oval navy blue wool base with a separately attached golden-yellow stamped metal gear wheel on an anchor, positioned above a single chevron, showing nice polished highlights. The insignia is nicely marked on the back. Nice original arm-badge in very good condition!