Obersturmführer
Military rank
Franz Abromeit serving in KZ Mauthausen
Pio Filippani Ronconi in the uniform of a foreign volunteer of the Waffen-SS
Obersturmführer was a Nazi Germany paramilitary rank that was used in several Nazi organisations, such as the SA, SS, NSKK and the... Wikipedia
Abbreviation: Ostuf
NATO rank code: OF-1
Next higher rank: Hauptsturmführer
Next lower rank: Untersturmführer