South Africa 1932 (Jan 26) South West Africa first flight illustrated cover 'By the First Airmail from Capetown to London Per Imperial Airways' Mariental to England bearing 10d (SG86) and 1d Jan van Riebeek’s Ship ovpt S.W.A pair (SG69) Both tied by tied by violet rubber LUGPOS/MARIENTAL/AIR MAIL handstamp with MARIENTAL/ SWA cds below . On back transit cds .Johannesburg Jan. 27  and arrival cds. Canterbury / KENT Feb. 17 1932