Lot 71 : General - Imperial AirwaysGeneral - Imperial Airways : CAPE TOWN-LONDON 1ST REGULAR RETURN SERVICE Broken Hill-Nairobi, 6d of N Rhodeisa, tied with Broken Hill 29 Jan 32 cds cancels one clear of the stamp. On Springbok illust cover. Addressed to Nairobi. Due to be carried on the first Northbound flight AN47 but this was delayed due to emergency landing in a swamp near Broken Hill. A 'Special Flight' was arranged with the City of Baghdad taking mail on the 2 Feb North, Broken Hill, Mpika, Mbeya, Dodoma, Moshi & Nairobi. All mail on this special flight received Nairobi 3 Feb 32 cancels (Except mail destined for UK). On the reverse Nairobi 3 Feb 32 receiving. Very scarce.