. . "Letter written by the Holocaust survivor Irwin Rubin from New York to the New York Forverts newspaper editor regarding his experiences in Posen, Sachsenhausen, Auschwitz, Mauthausen and Ebensee, 28 July 1947"@eng . "Letter written by the Holocaust survivor Irwin Rubin from New York to the New York Forverts newspaper editor regarding his experiences in Posen, Sachsenhausen, Auschwitz, Mauthausen and Ebensee, 28 July 1947"@eng . .