5, 10, 25 and 35 C Gabon local landscapes definitives overprinted with "Corps Expeditionnaire ..." on registered cover from JAUNDE 15.2.18 to Aix les Bains in France, transit Duala 20.2.18 and arrival 8.4.18 on reverse, very fine
6; Übersee A-Z; KAMERUN;
6; Overseas A-Z; CAMEROON;