. . "irn543387" . "Contains a certificate issued to Laib Opoczynski, April 1946, stating that he has been given materials by the British Red Cross; D.P. index card issued to Opoczynski in July 1945 that functioned as an identification document; a photocopy of an identity card issued to Aryo Opoczynski (donor's brother), April 1946; and an envelope with a pre-printed map of Germany and the annexed territories of Poland."@en . "Laib Opoczynski collection"@en . . . . "folder\n\n1"@en . . "United States Holocaust Memorial Museum"@en . . .