1971 5f. on 50f. multicoloured, complete sheet of 25 unmounted o.g., a couple of minor imperfections otherwise fine, a difficult sheet to obtain, SG 80: Estimate £500-£600 (Image)

1910 BRITISH ANTARCTIC EXPEDITION/TERRA NOVA R.Y.S embossed imprint cover bearing Cape of Good Hope 1d vertical pair cancelled "Simon's Town" for "September 1 10 3.30pm" addressed to Darter Sons (most probably for Robert Falcon Scott), the reverse with "Cape Town SP 1 10 8.00pm" arrival cds; minor usual toning and imperfections otherwise a scarce last minute letter (the ship sailed from Cape Town September 2nd 1910!): Estimate £150-£200 (Image)

1948 1r on 1/- Olympics right marginal (#78 on the sheet) with surcharge double, fresh unmounted o.g. SG guarantee on reverse, offered with the original approval booklet from SG. SG 30a, £1800: Estimate £700-£800 (Image)

1918 £1 purple and black on red paper Plate 1 pair from lower right corner of the sheet, fine o.g. with first light hinge, folded between. Scarce with Plate number. SG 55, £500: Estimate £220-£240 (Image)

1924 2/6d black and carmine on pale blue paper, fine lightly-hinged o.g., bottom marginal with HPF #54 damaged leaf at bottom right. SG 89f, £350: Estimate £100-£120 (Image)

1936-47 Pictorials unmounted o.g. Plate number blocks including ½d complete sheets (4), unnumbered (Plate 1) block, Plate 2 (6) and 2a (3); 2d 'Lucie' unnumbered block and 1/6d unnumbered blocks (2). Fine group of 6ds with (line perf) unnumbered (4), 2, 2a (2) and (comb perf) 2 (3), 2a (2) and 2-2. A terrific group, with a number dated ex the SG reference collection. SG 98/106: Estimate £150-£200 (Image)

1936-52 sheets group with ½d (2), 1d (2, one comb perf), 1½d, 2d ultramarine & scarlet, 2½d pale blue and sepia-black (2), 3d black and blue, 6d, 7½d (slight reinforcement), 1/- and 1/6d. Fine lot. SG 98/115, minimum catalogue £2454: Estimate £250-£300 (Image)

1938-52 1½d mint Plate block collection, apparently all unmounted o.g., with line perf undated blocks (5, including 2 x March 43 printing) and dated (4); comb perf blocks undated (5) and dated (6), some ex the SG reference collection, lovely group. SG 111-b: Estimate £180-£240 (Image)

1940-52 2d ultramarine and scarlet unmounted o.g. imprint blocks of four (5, one comb perf) or twelve (bottom two rows with imprint) (3, two comb perf, one in the 1952 shade). All from unnumbered plate, collected for different printings. SG 122a: Estimate £100-£120 (Image)

1938-52 2½d Plate blocks with 1938-41 first colours (two, different papers); second colours line perf blocks of twelve and four (3), comb perf blocks of twelve, six and four (2). All from unnumbered plate, collected for different printings. SG 113-c: Estimate £120-£140 (Image)

1938 first 3d Plate block (cream gum), and 1941-9 line perf 3d black and blue blocks of twelve (bottom two rows) and four; comb perf blocks of twelve (bottom two rows), six and four (five), apparently all unmounted o.g. All save two very late comb perf blocks unnumbered, collected for different printings. SG 114, a: Estimate £180-£240 (Image)

1938-50 2/- reference group per SG listing, mint, all unmounted o.g. except the line perf. Fine, selected examples. SG 116-f, £459 unmounted, £325 hinged: Estimate £180-£200 (Image)

1941 (Oct.) 2/- purple and blue on deep blue, mottled paper, unmounted o.g. Plate block of four with HPF #60 broken lower right scroll and 59ii repair to broken upper right scroll, fine and fresh. SG 116c, ce, £258: Estimate £100-£120 (Image)

1938-53 2s purple and deep blue on pale blue, ordinary paper, perf 14, upper left corner horizontal pair variety left stamp showing 'SHADING OMITTED FROM TOP RIGHT SCROLL' (R1/1). Superb unmounted og. Rare in this exceptional condition. Only 326 possible from March 1943 printing and most were used. SG 116b/db: Estimate £700-£900 (Image)

1952 (June) 2/- reddish purple and blue on light blue paper, unmounted o.g. Plate block of four. The final printing, very much scarcer than generally recognised. SG 116f var./ CW 21b: Estimate £100-£120 (Image)

1938-50 2/- mint group with singles (19), some unmounted, and blocks (two, one perf 14 and one perf 13, these unmounted). The singles include SG 116 and a respectable line perf, a very useful range. SG 116-f, STC £780: Estimate £150-£180 (Image)

1937 (Nov.) 2/6d black and red on grey-blue paper, top left corner block of left pane with Plate plug above R1/2, fine unmounted o.g. The plug was absent from all subsequent printings. SG 117: Estimate £180-£200 (Image)

1940 (Oct.) 2/6d black and red on grey-blue paper, o.g. Plate 1 block of four, fine o.g., #48 just touched by hingemark otherwise the stamps unmounted. Distinctive plug, a difficult printing mint. SG 117: Estimate £150-£180 (Image)

1946 (Dec.) 2/6d black and red on pale blue paper, the very scarce reprint, in an unmounted o.g. Plate block of four. Pencilled printing detail on selvedge. SG 117b var.: Estimate £140-£200 (Image)

1943 2/6d black and red on pale blue paper lower right corner example with HPF #60 broken lower right scroll, large part o.g., fine but for one foxed perf. SG 117be, £650: Estimate £120-£140 (Image)

1938-50 2/6d mint group with singles (23), some unmounted, and blocks (three, one perf 14 and two perf 13, these unmounted). The singles include eight examples of SG 117 and a line perf with large part o.g., a decent selection. SG 117-d, STC £1629: Estimate £250-£300 (Image)

1938-52 2/6d reference group per SG listing, mint, all unmounted except the line perf, which is lightly hinged with excellent gum for this, showing HPF #28a 'chisel' flaw by lip. SG 117-d, £123 unmounted and £600 hinged: Estimate £120-£140 (Image)

1944 (Mar.) 5/- green and red on pale yellow paper, unmounted o.g. Plate block of four, folded between selvedge and stamps otherwise very fine. SG 118e: Estimate £100-£120 (Image)

1949 (Dec.) 5/- yellow-green and red on pale yellow ordinary paper complete sheet of sixty (central fold), plate flaws as expected, hinged on the selvedge only with the stamps unmounted o.g. A scarce multiple. SG 119f, £2150: Estimate £500-£600 (Image)

1950 (Aug.) 5/- green and scarlet on yellow chalk-surfaced paper, unmounted o.g. Plate block of four. SG 118g: Estimate £140-£160 (Image)