Lot 43 : General - Imperial AirwaysGeneral - Imperial Airways : CAPE TOWN-LONDON 1ST REGULAR RETURN SERVICE Salisbury-Athens, 10d & 1d of S Rhodesia, tied with Salisbury 28 Jan 32 cds cancel. On Springbok illust cover. First Official Air Mail cachet. Athens 13 Feb 32 receiving & two different ar mail cachets. Addressed to Athens. On the reverse Cairo 12 Feb 32 transit & Athens 13 Feb 32 receiving.