Air Mail cover 1931-39 selection of first or commemorative flight covers (23) including 1931 (3 July) Malta to Khartoum, 1931 (Dec.) Christmas Flight to Cape Town (5), 1933 (Feb.) Addis-Ababa to Khartoum private flight card by Mme. Fusbahn, 1935 (30 Nov.) Khartoum to Djibouti first flight by the "Ala Littoria" service and various Imperial Airways flights