"1940 April" . . "Booklet containing information about planned variety and theatrical perfomances of\"Die Optimisten\" a group of German Jewish emigre actors and performers in Amsterdam, April 1940-July 1940. The performers belonged to an organization called\"Amsterdamer Gesellschaft der Freunde\""@en . "Die Optimisten"@en . . "irn46887" . . "folder\n\n1"@en . "United States Holocaust Memorial Museum"@en . . . .