Spain. 1879 10p. olive-bistre, mint, fine and fresh. Briefmarkenprufstelle Certificate (2003). S.G. 272. £2,000 (Image1)

Est. £250-300

Spain. 1931 prepared for use but not issued, continuous overprint in blue 10p. brown, Specimen control "A000,000", unmounted mint; fine. Handstamps on reverse and ComeCertificate (2004). Edifil NE27, €1,485 (Image1)

Est. £250-300

Spain. 1938 In honour of the Militia 5c. to 10p. set of nine, unmounted mint; fine. S.G, 861b-861j, £650 (Image1)

Est. £150-200

Spain. 1940-46 Zaragoza Catherdral Restoration Fund, Postage and Express set in imperforate pairs, the 40c. a vertical pair with original gum, the others horizontal pairs and unmounted mint; fine. S.G. 982-995, E1,006 (Image1)

Est. £300-400

Spain. 1950 Canary Island Visit, Air 10c. on 25p. top right corner block of four showing sheet number and with figures on the reverse, unmounted mint, fine and scarce. S.G. 1151, £3,000+ (Image1)

Est. £600-800

Spain. 1950 Canary Island Visit, Air 10c. on 25p. without figures on reverse, unmounted mint, fine. Bergua Certificate (1993). S.G. 1151a, £4,500 (Image1)

Est. £800-1,000

Spain. 1965 J. Romero de Torres 1p. error of colour green instead of brown, unmounted mint, fine. Signed Roig. See footnote after S.G. 1727 (Image1)

Est. £200-250

Spain. 1931 perf. 14 1c. to 10p. set of thirteen, mounted mint. S.G. 713B-725B, £1,100; Mi 598B-610B, €1,100 (Image1)

Est. £150-250

Spain. 1937 First Anniversary of National Uprising miniature sheets (2), both imperforate; unmounted mint. S.G. MS910 and 912, £1,200; Mi. 785 Block 7 B and 786 Block 8 B, €1,100 (Image1)

Est. £150-200

Spain. 1937 First Anniversary of National Uprising miniature sheets (4), both perforated and imperforate; a few hinge remainders and light tone marks in places. S.G. MS 909-MS 912, £1,284; Mi. 785 and 786 Blocks 7 A and B and Blocks 8 A and B, €1,240 (Image1)

Est. £150-250

Spain. 1938 group of miniature sheets comprising Historic Monuments perforated (2) and imperforate (2), Honouring Army and Navy imperforate, Defence of Madrid (2) and 150th Anniversary of U.S. Constitution; chiefly fine and lightly mounted or unmounted mint. S.G. MS840, 846, 914, 915 and 925, £785 (Image1)

Est. £80-120

Spain. 1938 Defence of Madrid, Air 5p. on 45c. + 2p. dull blue and light blue, unmounted mint, perfectly centred with the slightest trace of a tone spot on the reverse; otherwise highly attractive and scarce. S.G. 841, £550 (Image1)

Est. £50-80

Spain. 1938 Defence of Madrid Relief fund 45c. + 2pts. + 5pts. dull blue and light blue, surcharged 'aereo + 5pts.' perforated miniature sheet; lightly mounted mint. S.G. MS 842, £7,500; Mi. 711 Block 2, €8,000 (Image1)

Est. £600-800

Spain. 1938 Defence of Madrid Relief fund 45c. + 2pts.+ 5pts. dull blue and light blue, surcharged 'aereo + 5pts.' miniature sheet, variety imperforate, unmounted mint and handstamped kessler. ComeCertificate (1981). S.G. MS842 var; Mi. 711 Block 2 U, €9,000 (Image1)

Est. £800-1,200

Spain. 1938 Defence of Madrid Relief fund 45c. + 2pts. + 5pts. dull blue and light blue, surcharged 'aereo + 5pts.', miniature sheet, variety imperforate, lightly mounted and handstamped 'a. roig/ barcelona' on reverse; a few gum bends. Exfima Certificate (1977). S.G. MS 842 var; Mi. 711 Block 2 U, €9,000 (Image1)

Est. £600-800

Spain. 1938 Defence of Madrid Relief fund 45c. + 2pts. + 5pts. dull blue and light blue, surcharged 'aereo + 5pts.' miniature sheet, variety surcharge inverted, large part original gum; very rare. Graus Certificate. Edifil 760hi; Mi. 711k (Image1)

Est. £400-500

Spain. 1938 Defence of Madrid Relief fund 45c. + 2pts. + 5pts. dull blue and light blue, surcharged 'aereo + 5pts.', variety surcharge inverted, unmounted mint; rare. Henning Saeftel Certificate (1980). Edifil 760hi; Mi.711k (Image1)

Est. £600-800

Spain. 1938 150th. Anniversary of U.S. Constitution, perforated and imperforate miniature sheets (2); lightly mounted mint. S.G. MS 846 and 846 var.; Mi. Block 3, 3U, €525 (Image1)

Est. £80-120

Spain. 1938 150th. Anniversary of U.S. Constitution miniature sheet, surcharged 'correos +5 pts.', variety imperforate; unmounted mint, very rare. ComeMadrid Certificate (1983). S.G. MS 848 var.; Mi 713 Block 4 U, €9,000 (Image1)

Est. £1,000-1,500

Spain. 1938 Battle of Lepanto group of miniature sheets comprising 30c. carmine (2) and 50c. deep blue (2) and imperforate 30c. grey-violet and 50c. grey-green; unmounted mint, a little toning in places though generally fine. S.G. MS 936-939, £1,096 (Image1)

Est. £200-300

Spain. 1950 Air Canary Island Visit 10c. on 25p. brown-purple without control figures, unmounted mint, fine. Graus Certificate. S.G. 1151a, £4,500 (Image1)

Est. £800-1,000

Spain. 1950 Air Canary Island Visit 10c. on 25p. brown-purple without control figures, unmounted mint, fine. Graus Certificate. S.G. 1151a, £4,500 (Image1)

Est. £800-1,000