1944, mixed franking with 22 Fr postage in total on registered air mali cover from Elisabethville 7.11.44 to Cairo, directed to the HQ of the "G.S.I (12), M.E.F.", the Intelligence unit of Area 12 at the Middle East Forces in Egypt, censored upon departure, sealed with white label "Censure / Congo Belge", arrival CDS "Base Army Post Office 21.NO.44"
6; Übersee A-Z; BELGISCH-KONGO; Markenausgaben
6; Overseas A-Z; BELGISCH-CONGO; Stamp issues