Northern Rhodesia 1939 Barotseland Airmails Signed Flight Cover

NORTHERN RHODESIA: BAROTSELAND AIRMAILS: 1939 FIRST RETURN FLIGHT Fort Jameson to Lusaka. Cover franked KGVI 1½d tied despatch cds 3 JAN, additional strike alongside. Arrival cds 4 JAN on reverse. SIGNED BY PILOT A.H. DOWNING. Research confirms the delivery of thirty six letters on this flight. VF, scarce.