1938-51 set blocks (25 Plate blocks, including unnumbered, and three others, fresh unmounted o.g.); collected for printings, some dated on the selvedge. Includes 2/6d (4), 5/- perf 14 and perf 12 (and 13½ top right corner block), and 4d orange lower marginal with part imprint. Between SG 49/59c: Estimate £130-£150 (Image)

POSTAL HISTORY: 1924 Pair of RAF experimental flight covers: from Cairo to Kano (Nigeria), 26/10/1925 with Kano arrival backstamp 2/11/1925 endorsed “By Special Airmail”. Second cover from Kano to Cairo 11/11/1925 with 10/11/1925 arrival backstamp. Addressed to Australian-born, Sir Arthur Coningham who led this RAF mission 6,500 miles across Africa, and received the Air Force Cross in acknowledgement of this achievement. (2 covers): Estimate £200-£250 (Image)