Autograph letter signed by a prisoner in the Auschwitz concentration camp, dated 27 August 1943, postmarked from Auschwitz, and also with its censor stamp. In the letter in German, a man named Leo (or Len) Zabielski writes to a Sophie Zabielski, who lives on a street named after Hitler. On the front of Zabielski's letter, the rules of the camp are printed in German, restricting how often the prisoners can receive letters and how long they can be. In part, ''Concentration Camp Auschwitz…The letters to the prisoners must be legibly written in ink and may contain only two pages, each 15 lines…Packages can not be sent, as everything can be bought in the camp…Dismissal applications to the camp management are futile. / Visitor's permits and visits to detention centers in the concentration camp are not permitted in principle. / The Camp Commander''. Two page letter in pencil, with integral address panel acting as envelope, measures 6'' x 4.25'' as folded to be mailed. Small holes at intersecting folds, overall very good condition.