1937 Flight Addis Abeba-Asmara-Rome. Cover showing three-country franking with Ethiopia 1936 1L25, Somalia 1932 1L75 and Eritrea 1933 5L red in exceptional STRIP OF TEN and single, all tied by "DIRE DAUA - RACCOMANDATE E ASSICURATE 3-10-37" on large cover to Turin, an exceptional item; cert. Longhi (2012). (Image)