Lot 98 : General - Imperial AirwaysGeneral - Imperial Airways : CAPE TOWN-LONDON 1ST REGULAR RETURN SERVICE Cape Town-Nairobi, 2d & 4d Air of South Africa, tied with Cape Town 27 Jan 32 cds cancels. On plain air mail cover. Additional Air Mail label bottom left. Typed 'By Imperial Airways'. Addressed to Nairobi. On the reverse Nairobi 7 Feb 32 receiving. Clean cover.