. "No restrictions on access"@en . "irn713795" . . "63 sound tape reels,"@en . . "The United States Holocaust Memorial Museum acquired this interview from Comforty Media Concepts on October 31, 2017."@en . "No restrictions on use\n\nCopyright Holder: United States Holocaust Memorial Museum"@en . . . "Sync sound from the documentary film\"The Optimist\" (AUDIO)"@en . . .