1937 Dhow, complete set, l.h., fine-v.f., cat. $776 (Cat No. 1-12) (Image)

Cat. $776, Est.US$300

1937 Dhow, complete set of twelve, perforated hooded "Specimen", n.h., v.f., cat. £800 (Cat No. 1-12S) (Image)

Cat. £800, Est.US$500

1951 15c on 2 1/2a ultramarine, right sheet margin single with double surcharge, l.h., v.f. (SG £1,600) cat. $1000 (Cat No. 38a) (Image)

Cat. $1000, Est.US$750

1948 Quaiti State of Shihr & Mukalla, UPU 1sh blue, surcharge omitted, l.h., well centered, fresh and v.f., signed Stanley Gibbons, with normal stamp enclosed for comparison. A particularly rare stamp, only one sheet of 60 was released without the surcharge (SG 19a) cat. £4000 (Cat No. 19a) (Image)

Cat. £4000, Est.US$1,500

1922 Overprints, complete set, overprinted Specimen, h.r., fine-v.f. (SG 1-9s) cat. £800 (Cat No. 1-9S) (Image)

Cat. £800, Est.US$400

1924 George V, complete set, overprinted Specimen, h.r., fine-v.f. (SG 10-20s) cat. £1000 (Cat No. 10-21S) (Image)

Cat. £1000, Est.US$500

1934 George V, complete set, perforated Specimen, l.h., fine-v.f. (SG 21-30s) cat. £500 (Cat No. 23-32S) (Image)

Cat. £500, Est.US$250

1934 George V, complete set, overprinted Specimen, h.r., fine-v.f. (SG 21-30s) cat. £500 (Cat No. 23-32S) (Image)

Cat. £500, Est.US$250

1937 Coronation, set of three, perforated Specimen, h.r., fine-v.f. (SG 35-37s) cat. £450 (Cat No. 37-39S) (Image)

Cat. £450, Est.US$200

1938-53 George VI, 1 1/2p red, left margin vertical pair, bottom stamp with "Davit Flaw" variety, also 1 1/2p perf. 13, left margin block of four, lower left stamp with "Davit Flaw" variety, n.h., v.f. (SG 40a) cat. £610 (Cat No. 42var) (Image)

Cat. £610, Est.US$250

1938-53 George VI, 1 1/2p red, sheet corner margin block of 15, lower left stamp with "Davit Flaw" variety, n.h., some light overall gum toning, also 1 1/2p perf. 13 matching corner margin block of 15, also showing "Davit Flaw" at lower left, used, fine-v.f. (SG 40a) cat. £710 (Cat No. 42var) (Image)

Cat. £710, Est.US$250

1938-53 George VI, three different "Mountaineer" flaws, with 2p black and red orange, perf. 13 and perf. 14 and 2p black and scarlet, l.h., fine-v.f. (SG 41aa,41ba,41ca) cat. £1075 (Cat No. 43-43C) (Image)

Cat. £1075, Est.US$350

1920 (26 Feb) First Aerial Post England-Australia "Ross-Smith" Air Mail adhesive, tied by oval "First Aerial Mail Great Britain-Australia / Received 26 Feb 1920" datestamp, addressed to Hon. G.F. Pearce, Minister for Defense in Melbourne, handstamped "Per Vickers "Vimy" Aeroplane to Australia", cover refolded at top, unusually nice and v.f., with 1973 Royal certificate (Image)

Est.US$3,500

1928 Bert Hinkler Flight, picture postcard to Stephen Smith in Calcutta, franked India 1/2a canceled by pen, yellow Air Mail label endorsed in red "By Bert Hinkler", Park Street Calcutta cds (8 Aug), apparently posted back to Calcutta, without Australian franking and showing "Foreign Postage Due '2' Annas / Pies" handstamp, with Bundaberg, Queensland 10 August arrival, "20 CTMS T" due mark, signed by Stephen Smith on reverse "Carried by Mistake from Karachi to Bundaberg, Queensland by Bert Hinkler", also signed and dated (Aug 2) on front, card creases, otherwise fine, one of only six flown to Bundaberg in Queensland in August, 1928 (one of Australia's most astonishing sons, Bert Hinkler, a small, unprepossessing man from Bundaberg was feted as one of the most daring aviators in the world. Mussolini's favorite pilot, Hinkler was an adventurer who along with early pioneers flew single handed across countries, continents and oceans, often with nothing more than a lunchbox and pages of an atlas to guide him. Whether as an aerial showman or as a World War I fighter pilot, Hinkler's exploits thrilled the world, drawing massive crowds, and in his time he enjoyed the fame and adulation of his peers like Charles Kingsford Smith and Amelia Earhart) (Image)

Est.US$2,500

1939 Issue, 1/2p-£1 complete set of 14, l.h., fine-v.f., cat. $720 (Cat No. C46-59) (Image)

Cat. $720, Est.US$300

1912-24 issues, three different sets, l.h. or h.r., fine-v.f., cat. $750 (Cat No. 116-26,140-64) (Image)

Cat. $750, Est.US$250

2010 Centenary of Queen's Park, set of four imperforate sheets of 25, n.h., v.f. (Cat No. 1156-59var) (Image)

Est.US$2,500

1933 George V, 1/2p-10sh, complete set, perforated Specimen, h.r., fine-v.f. (SG 1-10s) cat. £375 (Cat No. 1-10S) (Image)

Cat. £375, Est.US$200

1898 Victoria, 50r lilac, overprinted Specimen, l.h., v.f. (SG 99s) cat. £400 (Cat No. 109S) (Image)

Cat. £400, Est.US$150

1853 4c blue, Demerara Ap 9, 1854 cds, large margins all around, minor toning, v.f., cat. £800 (Cat No. SG 19) (Image)

Cat. £800, Est.US$250

1948 Silver Wedding, complete set, mostly l.h., fine-v.f. (Image)

Est.US$1,000

1907 1/2p on 5sh salmon and green, l.h., v.f. (SG 18) cat. £300 (Cat No. 18) (Image)

Cat. £300, Est.US$150

1932 Centenary, complete set, perforated Specimen, h.r., fine-v.f. (SG 84-95s) cat. £600 (Cat No. 69-80S) (Image)

Cat. £600, Est.US$300

1935 George V, complete set, perforated Specimen, h.r., fine-v.f. (SG 96-107s) cat. £350 (Cat No. 85-96S) (Image)

Cat. £350, Est.US$150

1938-48 George VI, complete set, perforated Specimen, h.r., fine-v.f. (SG 115-126s) cat. £500 (Cat No. 100-111S) (Image)

Cat. £500, Est.US$250