OTHER BRITISH AFRICA / FOREIGN AFRICA
Saint Helena to Zanzibar
TANGANYIKA
AA5955
MAFIA ISLAND 1915 (May) 6c on 7½h GEA Yacht handstamped 'G.R. / POST / 6 CENTS / MAFIA', in black. Very fine mint. Brandon opinion (2004). Very scarce. SG M13
£2,400