Lot 61 : General - Imperial AirwaysGeneral - Imperial Airways : CAPE TOWN-LONDON 1ST REGULAR RETURN SERVICE Cape Town-Juba, 4d Air joined pair of South Africa, tied with Cape Town 27 Jan 32 cds cancels. On map of Africa illust cover. Return to sender in manuscript & faint Return to Sender 30 Apr 32 Juba oval cancel. Addressed to Juba. On the reverse Nairobi 7 Feb 32 transit Juba 9 Feb 32 receiving. Unclaimed cachet in purple 30 4 32 in red. Cape Town Returned LO 12 Jul 32.