1841 1d red-brown, Plate 73 (KL), right marginal imprimatur fine unused, very scarce. One of only 21 examples removed from the imprimatur sheet. SG 8var (Image)

1841 2d blue, Plate 4, selection lettered 'AD' arranged on a neatly written-up album leaf comprising singles (6, one with blue numeral '231'), strips of five (AD-AH) and six (AA-AF); cut into to huge margins (some showing adjoining stamps). Fair to fine. (17) (Image)

1841 2d blue Plate 4 (RA) four close to large margins, unused and regummed, still of fresh appearance. SG 14, £5000 (Image)

1855 1d red-brown Pl.5. The unique unused four margin top right hand corner marginal imperforate imprimatur showing plate number "5" and part sheet inscription, lettered AL. Ex Earl of Crawford & Colonel Bates (1934) collections. (Image)

1856 1d red-brown Pl.25. A superb unused imperforate four margin horizontal strip of three lettered CG-CI on ungummed paper from Neal's steam press experiment. Usual light creasing affecting CG stamp, not detracting from this magnificent strip. Spec. C8(1)h. 2001 RPS Cert. (Image)

1864-79 1d red study on nine exhibition pages of plate numbers from 71 to 224 (missing Plate 77), neatly presented with details of cancellations also noted. Mixed condition (Image)

1864-79 1d rose-red Plate 225 (MA), brilliant o.g; very fine. SG 43 (Image)

1864-79 1d red Plate 225, used on 1879 envelope to Crieff cancelled by Glasgow '159' duplex. Fine. SG 43/4 (Image)

1864-79 1d red plate accumulation of covers in two albums, many different plate numbers annotated in pencil. Mixed condition with many good to fine (380) (Image)

1858 2d Blue Pl.8. Very fine and fresh unused o.g. example lettered CG. Scarce. (Image)

1870 1½d rose-red Pl.3. Very fine well centred unmounted o.g. example lettered JK. Lovely vibrant colour, very scarce so fine. (Image)

1870 1½d rose-red Plate 1 error of lettering OP-PC for CP-PC, used by Scottish '178' numeral for Huntly, very fine and scarce. RPS Certificate (2016) SG 53 (Image)

1860 1½d rosy mauve Plate 1. Very fine and fresh unused og bottom corner marginal horizontal pair lettered TA-TB, showing part sheet marginal inscription and plate number. A magnificent plate number multiple of this rare stamp that was prepared for use but not issued. Ex Duncan Mutch. (Image)