Northern Rhodesia 1939 Barotseland Airmails Signed Flight Cover

NORTHERN RHODESIA: BAROTSELAND AIRMAILS: 1939 FIRST FLIGHT Lusaka to Mankoya. Cover franked KGVI 1½d tied despatch cds 2 JAN with arrival cds 3 JAN on reverse. SIGNED BY PILOT H.R. KIRKMAN. Only 20 covers known for this destination. VF, very scarce.