1855 6d Plate proof in green on thin card with trial cancellations, good to very large margins and rare (SG £7’500) (Image)

1855 Emblems 1s pale green in mint block of four, light surface rub on top left stamp, disturbed gum, a rare multiple (SG £15’500) Provenance: Victoriana (Image)

1878 10s Imperforate colour trial in mauve, wmk Maltese Cross, SPECIMEN type 9 ovpt, never hinged original gum, very fine (SG from £2’400) (Image)

1878 £1 Imperforate colour trial in grey-blue, wmk Maltese Cross, SPECIMEN ovpt type 9, original gum, couple of small handling creases, fine (SG from £2’700) (Image)

1878 £1 Imperforate colour trial in orange, wmk Maltese Cross, SPECIMEN ovpt type 9, original gum, some gum wrinkles, fine (SG from £2’700) (Image)

1878 £1 Brown-Lilac with London thimble, thinned at top otherwise fine (SG £4’500) (Image)

1877 4d Grey-Green pl.16 wmk Large Garter, distributed remainder gum and light corner crease otherwise fine example, scarce (SG £1’400) (Image)

1880 4d Grey-Brown pl.17 wmk Large Garter, mint hinge remainder, scarce (SG £2’800) (Image)

1880-83 4d Grey-brown imprimatur on gummed paper, fine and scarce (SG £2’500) (Image)

1880-81, Mint selection incl. 1880-81 set to 5d incl. both shades of 1/2d and 2d; and 1881 1d lilac die I (tone spots) and die II shade selection (5), some with toning, average to fine condition (Image)

1884 Wmk Crowns £1 brown with London duplex “105”, a few perfs repunched otherwise very fine, signed G.Senf (SG £2’800) (Image)

1883-84 2 1/2d De La Rue colour trial in yellow, mint hinge remainders, scarce (SG £2’000) (Image)

1887-1900 Jubilee issue 1 1/2d reply paid essay, imperf. with frame only in blue, mint og, small gum wrinkle, fine (Image)

1863 (May 7) Wrapper from London to France with 1854-61 1d red, 1858-79 2d blue pl.9, 1855-57 4d and 6d, all tied by London “10” numerals, with Calais and Paris ds, very fine and attractive 4-colour franking (Image)

1869 (Apr 5) Cover from Belfast to Barranquilla franked by 1867 1s green plate 4 tied by “62” duplex in combination with Colombia 10 centavos pen cancelled, sent via St. Nazaire on French Packet Line A Paq. No. 1 (08.04.69 bs), a unique mixed franking exhibition item Expertise: Signed Calves, cert. BPA: “The GB 1s franked the letter to the port of entry and the Colombian stamp from there to Barranquilla”. Provenance: Emerald (Image)

1887 (Sep 17) Mourning envelope to Sao Tomé & Principe with two 1887 4d Jubilees tied by London duplexes, French transit adjacent and London despatch on reverse, minor soiling, fine and very rare destination (Image)