"Norbert Troller greeting cards"@en . "irn514386" . . . . "The Norbert Troller greeting cards collection consists of 10 greeting cards designed by Norbert Troller, a survivor of the Theresienstadt ghetto, and sent to Erna Korner, 1970-1971, 1973-1978, 1982."@en . . . "The Norbert Troller greeting cards are arranged in chrological order."@en . "United States Holocaust Memorial Museum"@en . . "folder\n\n1"@en . .