Andorra. French Post Offices. 1932-43 prepared for use but not issued 20c. ultramarine, unmounted mint; tiny blue mark on the reverse, otherwise superb and a great rarity. Only one sheet of 25 printed. Signed Calves and others. See footnote after S.G. F81, £38,000; Yvert 30A, €40,000 (Image1)

Est. £2,000-4,000

Andorra. French Post Offices. 1933 National Election overprinted 'election /1933' 1c., 2c., 3c., 5c. (2), 15c. and 20c.; 1c. and 3c. with overprint inverted, one 5c, 15c. and 20c. with double overprint, one inverted, large part original gum, with some browning. Printed as 'unauthorised productions'. See footnote after S.G. F81 (Image1)

Est. £200-300

Anguilla. 1967 "Independent Anguilla" ½c. to $5 set of sixteen. unmounted mint; $1 with light gum bend and some values showing partial offset of the surcharge on the reverse, this is particularly strong on the 50c. A very rare and desirable set. S.G. 1-16, £25,000Note: This lot is accompanied by two letters of provenance. The first from Urch, Harris gives the history of this set, being one of three purchased on the day of issue by the rector and the doctor. Shortly after this the postmaster was instructed not to sell any more mint stamps in order to protect the small stock from the ravages of philatelists. He was free to apply these stamps on mail posted at his office. The second letter is from the then owner to Harmers of London, prior to their sale by auction (Image1)

Est. £6,000-8,000

Argentina. 1930-31 Revolution set of nineteen to 50p., large part original gum; fine and scarce. S.G. 592-610, £1,500 (Image1)

Est. £300-350

Austria. 1918 Air 2.50k. on 3k. ochre, surcharge inverted, large part original gum, fine and rare. Signed Ferchenbauer and with Babor Certificate (2004). S.G. 297Bc, £1,900; ANK 226y I (Image1)

Est. £400-500

Austria. 1918 Air, prepared for use but not issued 7k. on 10k. brown, original gum, fine and rare. (Image1)

Est. £300-500

Austria. 1933 W.I.P.A. granite paper 50g. (+ 50g.) ultramarine block of four, large part original gum with the lower pair remaining unmounted mint, fine. S.G. 704, £2,200+ (Image1)

Est. £400-500

Austria. 1933 W.I.P.A. miniature sheet in official folder, fine unmounted mint. S.G. MS705, £4,500 (Image1)

Est. £800-1,000

Austria. 1936 Dolfuss 10s. slate-blue lower left corner block of four, fine unmounted mint, hinged in the margins only. Rare. S.G. 793, £5,200+ (Image1)

Est. £1,000-1,500

Austria. 1936 Dolfuss 10s. slate-blue lower left corner pair, unmounted mint, a few split perfs., otherwise fine. S.G. 793, £2,600 (Image1)

Est. £300-500

Austria. 1946 Renner, the set of four miniature sheets, unmounted mint, fine. S.G. MS976, £3,250 (Image1)

Est. £400-600

Austria. 1950-53 Air, Birds 60g. to 20s. set of seven in unmounted mint blocks of four; one 60g. with tiny tone speck on reverse, otherwise fine. S.G.1215-1221, £2,000+ (Image1)

Est. £200-400

Austria. 1910 Birthday set, mostly unmounted mint, the top three values perfect. Raybaudi Certificate (1978) for the 10k. S.G. 223-239, £800, Michel €600 (Image1)

Est. £80-100

Austria. 1933 granite paper W.I.P.A. 50g. (+ 50g.) ultramarine, unmounted mint from the corner of the miniature sheet. S.G. 704, £550 (Image1)

Est. £100-150

Austria. 1933 W.I.P.A. miniature sheet in official folder; large part original gum, lightly mounted in the margin at foot, folder with three exhibition cancellations to face S.G. MS705, £4,500 (Image1)

Est. £300-500

Austria. 1936 Dolfus 10s. slate-blue, unmounted mint and perfectly centred. S.G. 793, £1,300, Michel 588, €1,400 (Image1)

Est. £150-200

Bahrain. 1948 Olympic Games 2½a. on 2½d. ultramarine, variety surcharge double, unmounted slightly off-white gum; rare. B.P.A. Certificate (2000). S.G. 63a, £3,500 (Image1)

Est. £500-600

Bahrain. 1948 Olympic Games 2½a. on 2½d. ultramarine, surcharge double, unmounted mint; slightly off-white gum, fine and rare. S.G. 63a, £3,500 (Image1)

Est. £500-600

Belgium. 1919-20 Helmet 1c. to 10f. set of fourteen in blocks of four, fine mint, the lower pair in each unmounted. Rare multiples. S.G. 237-250, £4,000+ (Image1)

Est. £1,000-1,200

Belgium. 1919-20 Helmet 2f. purple block of four, mint with the lower pair unmounted; a fraction gum toned, otherwise fine mint. A rare multiple. G. Bolaffi Certificate (1979). S.G. 248, £2,600+ (Image1)

Est. £500-600

Belgium. 1929 Orval Abbey 5c. to 10f. set of nine in horizontal pairs, fine unmounted mint. S.G. 543-551, £2,000+ (Image1)

Est. £300-400

Belgium. 1918 Red Cross Fund set of fourteen, fine mounted mint. E. Diena Certificate (1984) for the top three values. S.G. 222-235, £1,500 (Image1)

Est. £200-300

Belgium. 1919-20 Helmet set of fourteen, fine mounted mint. S.G. 237-250, £1,000 (Image1)

Est. £150-200

Belgium. 1919-20 Helmet 2f. purple, from the upper right corner of the sheet, unmounted mint, hinged in the margin only. S.G. 248. £650 (Image1)

Est. £180-220

Belgium. 1929 Orval Abbey set of nine, fine lightly mounted mint. S.G. 543-551, £1,000 (Image1)

Est. £150-200