Description
Plain card from ‘Société Muphilia’ Brussels with 15c pictorial and 50c airmail, cancelled COSTERMANSVILLE s/r cds to Usumbura 27 November 1939; on the inauguration of the new air service from Stanleyville to Usumbura, with first flight h/s 18 Nov 1939; b/s Usumbura 29 Nov 1939