1941, day of stamp/WHW-eternal witnesses to a German culture, Gr. Collapsible commemorative leave with Michel number. 751/59 u. 4 versch. pass. Commerative cancel Vienna 12.1.41, back with ungest,. vignette souvenir sheet stuck on, Stephan, usual, cancel color imprints, low ed., signed Hessheimer, recd. I II, rare, RR