Colored inverted triangles were used in the
concentration camps in the German-occupied countries to identify the reason the prisoners had been placed there. The triangles were made of fabric and were sewn on jackets and shirts of the prisoners. These mandatory badges had specific meanings indicated by their color and shape. The system of badges varied somewhat between the camps. Such emblems helped guards assign tasks to the detainees: for example, a guard at a glance could see if someone were a convicted criminal (green patch) and thus likely of a "tough" temperament suitable for
kapo duty. Someone with an "escape suspect" mark usually would not be assigned to work squads operating outside the camp fence. Someone wearing an
F could be called upon to help translate guards' spoken instructions to a trainload of new arrivals from France. Detainees wearing civilian clothing (more common later in the war) instead of the striped uniforms were often marked with a prominent
X on the back. This made for an
ersatz prisoner uniform. For permanence, such
Xs were made with white oil paint, with sewn-on cloth strips, or were cut (with underlying jacket-liner fabric providing the contrasting color). Detainees would be compelled to sew their number and (if applicable) a triangle emblem onto the fronts of such
X-ed clothing. File:Bundesarchiv Bild 146-1993-051-07, Tafel mit KZ-Kennzeichen (Winkel) retouched.jpg|Nazi camp ID-emblems in a 1936 German illustration File:Prisoners' Uniforms with Red Triangles of Political Prisoners - Museum Exhibit - Dachau Concentration Camp Site - Dachau - Bavaria - Germany.jpg|Red triangle emblems of a political enemy on a
Dachau detainee's clothing. The white cloth-tape above bears the ID number 28320. File:Bundesarchiv Bild 183-78612-0007, KZ Sachsenhausen, Häftlinge bei Zählappel.jpg|Single-triangle badges in various colors visible on
Sachsenhausen concentration camp detainees File:KL Auschwitz distinguishing marks.png|Museum sign shows distinguishing emblems used at
Auschwitz. File:Bundesarchiv Bild 192-008, KZ Mauthausen, Sowjetische Häftlinge.jpg|At,
Mauthausen, Soviet
POWs have
SU painted on their clothing (in the manner of the Auschwitz marking-chart in this gallery). File:Prisoners in the concentration camp at Sachsenhausen, Germany, December 19, 1938. Heinrich Hoffman Collection. - NARA - 540178.tif|
Sachsenhausen detainee with glasses in the foreground wears a two-color double-triangle ID-emblem. File:Buchenwald Disabled Jews 13132 crop.jpg|Disabled Jews with double-triangle cloth badges: a black triangle on a yellow triangle, meaning "asocial Jews".
Buchenwald, 1938. File:13cwik.jpg|alt=F (French) on a red triangle (political enemy) and ID-number 31299 on the Buchenwald-issue clothing of Dr Joseph Brau .mw-parser-output .citation{word-wrap:break-word}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}^|
F (French) on a red triangle (political enemy) and ID-number 31299 on the
Buchenwald-issue clothing of Dr File:A2vestond.JPG|alt=At times, the backs of civilian-style clothing got an X marking to make an ersatz prisoner outfit - this Buchenwald specimen shows traces of an X (which was later scrubbed off and then covered-over with a cloth scrap). .mw-parser-output .citation{word-wrap:break-word}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}^|At times, the backs of civilian-style clothing got an
X marking to make an
ersatz prisoner outfit - this
Buchenwald specimen shows traces of an
X (which was later scrubbed off and then covered-over with a cloth scrap). File:Numer obozowy KL Stutthof 29659.JPG| German concentration camp badge for Polish (non-Jewish) political prisoner in Stutthof. ID 29659 - ==Armbands==