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