AEF Period 1915-1931. 1922, 10 C. stationery envelope on brown paper (unrecorded) with additional franking 5 and 10 C., from BANGUI to FORT CRAMPEL, forwarded to NDele (blue marking) and redirected to FORT CRAMPEL with arrival mark, very rare usage
6; Übersee A-Z; FRANZÖSISCH-ÄQUATORIALAFRIKA; Oubangui - Chari