Lot 109 : General - Imperial AirwaysGeneral - Imperial Airways : CAPE TOWN-LONDON 1ST REGULAR RETURN SERVICE Pietersburg-London, 1d joined pair, 3d joined pair (SG35) & 4d Air of South Africa, tied with Pietersburg 28 Jan 32 cds cancels. On Springbok illust cover. Addressed to Anglesey. Anglesey 17 Feb 32 receiving on the front. No markings on the reverse.