. "Oral history interviews, B-roll footage, and outtakes from the documentary film\"The Optimist\" (FILM)"@en . . . . "irn713794" . . "No restrictions on access"@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 . "20 film reels, color ; 16 mm"@en . .