Rank insignia of the Nazi-Wehrmacht (Heer, Army) and Waffen-SS to tress articles without shoulder boards (summer camouflage suit until 1942-1945); here cuff titles to the ranks:
Fahnenjunker-Oberfeldwebel / Oberfeldwebel,
SS-Standartenoberjunker / SS-Hauptscharführer,
today NATO OR-7 comparable.
Own work
Skjoldbro