its advantages but it was also fraught with occupationally related social disadvantages as well, and if post-war descriptions of the SD by historians are any indication, membership therein implied being a part of a "ubiquitous secret society" which was "sinister" and a "messenger of terror" not just for the German population, but within the "ranks of the Nazi Party itself." Uniforms and insignia The SD used SS-ranks. When in uniform they wore the grey Waffen-SS uniform with army and Ordnungspolizei rank insignia on the shoulder straps, and SS rank insignia on the left collar patch. The right collar patch was black without the runes. The branch color of the SD was green. The SD sleeve diamond (SD Raute) insignia was worn on the lower left sleeve. See also Bandenbekämpfung Glossary of Nazi Germany List of SS personnel Operation Bolivar References Informational notes Citations Bibliography External links Nazi German intelligence agencies German words and phrases Nazi Party organizations Nazi SS Reich Security Main Office Reinhard Heydrich