. . "Copyright Holder: Anne Frank Fonds"@en . . . . "Holly Rumpler papers"@en . "irn514249" . "folder\n\n1"@en . "United States Holocaust Memorial Museum"@en . "1972 June 15" . . "Consists of a letter written by Otto Frank to Holly Rumpler, describing the Frank family's life in hiding during the Holocaust; and the air mail envelope in which it was sent."@en . .