Guatemala: Four entires to France with 1862 Guatemala cds, three-line Panama transit and 2f87 5/£10 accountancy, 1868 entire with double-ring blue despatch,...

Haiti: 1879 entire to St Thomas, written from Port Au Prince but sent from Jacmel bearing single franking Great Britain 1877 4d sage-green, plate 16 paying...

Puerto Rico: 1852 entire to Madrid, rated "2/2" and bearing (Crown)/PAID/ AT/ SAN JUAN PORTO RICO in black, red framed P.P, London transit and French entry...

Venezuela: Small accumulation with 1845 outer letter sheet from Caracas via La Guayra date stamp, similar 1846 from Larraloe (in red), two 1847 outer...

1849-56, Group of 11 covers with Crown Circles incl. 1850 entire to Patras endorsed "per Vapore di S.M. Brillance" with manuscript rate markings, strike...

Argentina: 1855 entire to Cadiz bearing good to fair strike of Buenos Ayres handstamp, endorsed "por Tenerife" whose transit date stamp appears on reverse,...

Chile: 1868 (SP 17) commercial entire to New York, endorsed "pr vapor via Panama" bearing red type II with dot PAID AT VALPARAISO (upside down), "1/-"...

Guadeloupe: 1868 (Mar 12) outer letter sheet to New York franked French general colony Eagles 20c and 40c with variable margins tied by large blue dotted...

New Zealand: 1854 (Oct 9) entire to London bearing fair strike in red PAID AT Port Victoria New Zealand overstruck by local "4" manuscript charge, reverse...

Puerto Rico: 1858 (Jul 29) outer letter sheet from San Juan, Puerto Rico to Rivadeo, Spain franked Antilles 1857 1/2r (touched margin at base) tied by...

A81: 1868 (Jun 14) small envelope addressed to Charles Tomkin at Royal Naval college, Portsmouth (a Navigational Instructor and Mathematical Master at...

1902-10 De La Rue group of SPECIMEN opts mint, with 1/2d yellow green (type 17, gum a trifle toned), 1d (forged type 17), 1 1/2d, 2d and 3d (each type...

1902 KEVII 1d blue 'ECKERLIN' printing style proofs produced in 1920s, one sheet of 25 on ungummed paper without watermark and another on gummed paper...

1902-10 De La Rue 2 1/2d die proof in black on glazed card, no additional markings, very fine and rare.

1902-10 10d dull purple and scarlet on chalk surfaced paper in mint n.h. right marginal block of four, very fine and fresh (S.G. £1'040+ for mint n.h.).

1902-10 2/6d lilac (regummed, ex Chartwell), 5/- carmine and 10/- ultramarine mint (creased) all with SPECIMEN type 16 overprint, a scarce trio. (S.G....

1911 1d rose-red mint (very lightly mounted) showing a major and very striking misperforation, another with dry print horizontally, a third misperforated...

1911 Somerset House 9d slate purple & cobalt blue (fluorescent ink) in mint n.h. complete pane of 20 (pos. F, from plates H2c/D1), mounted in the margins...

1911-13 Somerset House 10/- bright blue in lower right corner marginal pair mint n.h., from the 1st printing with cuts under the 7th stamp, lovely quality....

1911-13 10s blue mint n.h. lower marginal, fresh and very well centred, incl. two certs from when it was in a block of four (S.G. £2'100).

1911 Privilege Envelope addressed to himself by Capt. W. Windham and signed by him at a later date. 1d Stamp with Windsor Sept 16 special first day of...

1911 Privilege Envelope addressed to W.G. Kirkwood, official representative of the GPO at the Hendon launch of the Aerial Post Event, franked with two...

1911 Privilege Envelope addressed to W.G. Kirkwood, official representative of the GPO at the Hendon launch of the Aerial Post Event. KGV 1d with special...

1911 Souvenir Postcard done exclusively for Capt. Windham and signed by him. Rare burgundy colour from trial printing, very few known. Stamp on reverse...

1911 Complete Newspaper. Special Aerial Post Issue. Tied with Privilege Postcard addressed to Sir W. Campbell, Chief Ranger at Windsor great park. Windsor...

1911. Aerial Post Official Notice produced to announce the details of the Aerial Post Event, framed for protection, only three examples known today. Creased...

1911 Aerial Post, complete group of postcards from the three London collection circuits of mail to be flown from Hendon (each datelined as such); First...

1911 Aerial Post set of six postcards, all in olive-green with the six die numbers used in the cancellation from London, fine.

1911. Postcard believed to be flown in both directions. Posted in London Sep 9 then once delivered taken to Windsor and franked with cut-out of KEVII 6d...

1911. Light Green Proof. London Envelope flown from Windsor Sept 16, planned first day of return flight. Envelope Proofs in various colours were used when...

1911 Aerial Post group of ten photographs from the event, plus one of Hamel at the controls of his Bleriot monoplane taken at a later date, unusual.

1911. Large Daguerreotype photo of Aerial Post van, as used to collect mail from London Department Stores and transport to Hendon Aerodrome.

1911 Aerial Post Sept 9 postmark, first day of the event, complete strike on a KGV 1d block of four, mint n.h. and probably done as a favour, the only...

1911 Aerial Post unused olive-green postcard with "Hendon" replacing "London" in the text below the illustration, though thought to be a forgery by the...

1915 King George V Die Proof of enlarged crown, dated on reverse 8.10.1915 in pencil, an unadopted design by Bradbury Wilkinson; ex "Monarch".

1912 Wmk. Simple Cypher 1/2d green in lower left corner marginal Control 'B' strip of 3, the '12' of 'B12' omitted , hinge remainders, a little perf. separation...

1912 Medal Head bromide by J.A.C Harrison (from his 1912 sketch) inscribed '46 Medal Head' in manuscript, most attractive and very scarce.

1912 1d scarlet colour trial die proof printed on multi crown wmk and gummed paper, 33x76mm, showing plate wear/poor impression, endorsed "132" at lower...

1916-18 Royal Cypher brown-red "paranitraniline red" colour trial in top right corner block of 12 with ms "a" in the margin, plus matching block in dull...

1912 4d Trial of Eve's Wreath Design proof in block of four with the large coinage head (12mm) printed on thin white glazed card previously mounted on...

1913 Waterlow Seahorse 2s6d deep sepia-brown mint l.h. right marginal, couple of shortish perfs, fine (S.G. £400).

1913 Waterlow 2/6d sepia-brown upper left corner marginal example mint (trace of mount only), showing a striking misperforation in margin due to paper...

1913 Waterlow 10s indigo mint n.h. corner marginal, very fine; cert. RPS (1977) and Zanaria (2011) (S.G. £1'500 for mint n.h.).

1913 Waterlow 10s indigo-blue mint with only faintest trace of a hinge, faint horizontal gum bend, fresh with strong colour (S.G. £850).

1913 Waterlow £1 dull blue-green mint n.h., very fine (S.G. £3'800).

1915 De La Rue 2s6d very deep brown mint n.h., very fine (S.G. Spec N64(11)).

1915 De La Rue 2s6d bright yellow-brown mint lower right hand corner marginal block of four, only faintest trace of a hinge at top, light gum bends, very...

1918-19 Bradbury 2/6d chocolate brown in upper marginal block of 8 on piece with neat 'Guernsey 14 OC 19' cds cancels, stamp R1/4 showing the re-entry...

1918-19 Bradbury Wilkinson 10/- Experimental Plate Proof in black on hard unwatermarked paper (ex a 1929 experimental sheetlet of 9 discovered in Australia),...

1913-19 Seahorse mint group of 7 incl. BW 2s6d (2), Waterlow 5s mint (3) and BW 10s (2), some possibly mint n.h., odd gum bend otherwise very fine, plus...