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-Unterfeldwebel / Unterfeldwebel,
SS-Oberjunker / SS-Scharführer,
today NATO OR-5a comparable.
Own work
Skjoldbro