Official cover sent from the 'Kanzlei der Fuhrers der NSDAP' in Berlin to an address in Hannover. Undelivered, a label has been affixed stating, 'Versuchsweise zuzustellen Empfanger befragen in Leveste/ Hannover -1 Land' (temporary address for collection). To the reverse the violet hand-stamp states, 'Strasse in Hannover unbekannt' (street in Hannover unknown). Ref: 24.06.1942