1870 ½d ROSE-RED - PLATE 1 - fine imprimatur lettered TR; 1997 Brandon cert. SG from £1500. (Image)

1864 1d RED - PLATE 188 - fine imprimatur lettered AF. SG £425. (Image)

1870 1½d ROSE-RED - PLATE 1 - OP-PC ERROR OF LETTERING - good to fine used example. SG £1900. (Image)

1858 2d BLUE - PLATE 15 - fine imprimatur lettered BG. SG £7500. (Image)

MIXED PLATE NUMBER SERIES GROUP - small used accumulation of the four values ½d to 2d, very mixed condition though much is fine. Includes a fine ½d rose-red plate 9 (SG£850), also a few earlier line-engraved of lesser quality. (150+) (Image)

1848 PLATE 71 ARCHER ROULETTE - lettered PJ, fine mounted mint with large part gum. 1946 RPSL cert. Rare; SG £25000. (Image)

1850-54 ARCHER PERFORATIONS - FG plate 97 and ML plate 98, both well-centred and fine used. SG £1275. (2) (Image)

PLATE 170 - lettered KB with fine 'Treasury Roulette'. 1991 RPSL cert; SG £7200. (Image)

1841 1d RED PLATE 11 TRIAL ON DICKINSON SILK THREAD PAPER - fine four margins, ungummed, with the 'silk' (really cotton) thread just visible from the front running very slightly diagonally down the right margin outside the printed design. 1990 RPSL cert; SG DP22 £7500. (Image)

1865 "ROYAL REPRINT" 1d BLACK - printed from plate 66, lettered CI imperf on inverted large crown watermarked paper; large margins, hinge remains. SG DP35a £3500. (Image)

1872 SOUTH KENSINGTON EXHIBITION PROOF 1d BLACK - printed from plate 27, lettered GJ imperf on thick white card; fine four margins. SG DP36 £2500. (Image)

1865 "ROYAL REPRINT" 1d ROSE-RED - printed from plate 66, lettered AE imperf on large crown watermarked paper; four margins, small pen? mark at top right. SG DP35b £3000. (Image)

1867 PARIS EXHIBITION PROOF 1d BLACK - printed from plate 103, lettered JD imperf on soft white card; fine four margins. SG DP38 £3000. (Image)

1867 PARIS EXHIBITION PROOF 1d ROSE-RED - printed from plate 103, lettered GH imperf on soft white card; adherence from old mounting on the back, else fine four margins. SG DP38 £3000. (Image)

1841 SMALL TRIAL TWOPENCE PLATE - single from the top of the sheet; light toning from a hinge in the upper selvedge, else fine. SG DP43 £1800. (Image)

1867 PARIS EXHIBITION PROOF 2d BLACK - printed from plate 9, lettered KB imperf on soft white paper; light soiling, hinge remains. SG DP49 £4000. (Image)

1867 PARIS EXHIBITION PROOF 2d BLUE - printed from plate 9, lettered JE imperf on soft white card; small area of surface disturbance on the back else fine four margins. SG DP49 £5000. (Image)

1856 1d RED-BROWN DIE II LARGE CROWN (C8) PLATE 25 - used and lettered QG, virtually four margins, the printed design just touched at the top right corner, other small faults, rare. 1954 RPSL cert; SG £3500. (Image)

1857 1d ROSE-RED DIE II LARGE CROWN (C10) PLATE 42 - used and lettered LH, virtually four margins, crease and small faults, rare. 1948 RPSL cert; SG £3800. (Image)

1864 1d LAKE-RED PLATE 101 - lettered HK, very fine used with four large margins. Lovely quality; 1975 RPSL cert, SG £4500. (Image)

1858 2d BLUE PLATE 13 - lettered TJ, very fine mint with four margins and large part gum. 1989 RPSL cert, rare; SG £12000. (Image)

1870 ½d ROSE-RED PLATE 1 - mint example lettered QR with some gum, apparently imperforate. Slightly weak upper right corner. (Image)

1840 VR PENNY BLACK - attractive mint example lettered HF, top margin expertly added. SG £35000. (Image)

1860 1½d ROSY-MAUVE ON BLUED PAPER - fine mint example lettered CH. SG £8500; 1974 RPSL cert. (Image)

1860 1½d ROSY-MAUVE ON BLUED PAPER - an extraordinarily rare used example, lettered HF; hugely rarer than mint. Accompanied by 1898 RPSL cert. with no photograph and only scant description of the item; it is not possible to be certain the certificate belongs to this item. Extremely rare: SG £10500. (Image)