1840 1d black Mulready Envelope, Stereo A174, 24 FEB 24 1842 dated Maltese Cross and Bristol double split-ring backstamps, attractive and very fine. (Image)

Est. $150-200

1840 1d black Mulready Envelope, Stereo A176, red Maltese Cross postmark, "Basingstoke MY 14 1842" double split-ring backstamp, small tear to back, minor wrinkles, fine. (Image)

Est. $100-150

1840 Penny Black, Plates 1a to XI, a complete set, generally ample to generous margins, several beautifully-struck postmarks noting intense shade of Plate 1b with bold deep orange-red Maltese Cross, plates III and V in deep black, the key Plate XI particularly nice, an attractive set, challenging in such select quality, scarce and very fine; ex Chartwell. (Image)

Est. $4,000-5,000

1840 1d Black Plate 6, lettered DJ, four margins, tied by black Maltese Cross to 1840 folded letter addressed to Rowland Hill, Esq, Downing Street, red "2 An 2 / DE 31 / 1840" datestamp on reverse, light vertical filing fold through stamp, not detracting from the superb appearance of this lovely and important cover, an exceptional frontispiece for a specialized collection of Great Britain or classic philately; ex Gross. (Image)

Est. $3,000-4,000

1840 1d black, lettered EC, tied by red Maltese Cross to 1840 folded letter, to Sheffield, with red "Ayr No 9 1840" boxed backstamp, a few small stains at top, attractive and fine. (Image)

Est. $150-200

1847 1d pale green Embossed, used with "466" numeral cancel, touching at left and foot but showing portion of adjoining stamp at top and large portion at right, a few negligible shallow thins as often seen, fine. (Sc. 5, S.G. 54, £1,100) (Image)

Est. $100-150

1849 2d blue, white lines added, Plate 3, lettered LC, tied by black Maltese Cross to cover front addressed to Rowland Hill, the famed inventor of the prepaid adhesive postage stamp, a superb addition to a specialized collection of Great Britain; ex-Gross. (S.G. 14) (Image)

Est. $750-1,000

1854 6d red violet Embossed, large margin at bottom, touching on other three sides, used with centrally-struck "15" numeral, some light soiling, a presentable example, fine. (Sc. 7, S.G.60, £1,000) (Image)

Est. $100-150

1882 5/- Rose on bluish paper, plate 4 lettered EC, postmarked with centrally-struck "London E.C. AP 6 94" hooded c.d.s., slightly faded color, very fine appearance. (Sc 90, S.G. 130, £4,800) (Image)

Est. $750-1,000

1882 £5 Pale dull orange on bluish paper, lettered AB, select centering, crisp centrally-struck "Leeds 9 FE 89" c.d.s., fresh color, barest trace of a wrinkle in lower right margin, devoid of the usual faults that plague this issue, a beautiful example of this rare stamp, scarce in such choice condition, very fine. (Sc 93a, S.G. 133, £15,000) (Image)

Est. $3,000-4,000

1883 2/6d Lilac, small hinge remnant, impeccable centering, fresh color, very fine. (Sc. 96, S.G. 178; £600) (Image)

Est. $100-150

1884 5/- Carmine rose, lettered GF, lightly hinged, four balanced margins, striking bright shade, very fine. (Sc. 108, S.G. 180; £1,100). (Image)

Est. $200-300

1884 10/- Ultramarine, beautifully-centered, crisp "Barnes NO 26 97" c.d.s., diagonal blue crayon cancel, delicate shade, very fine. (Sc 109, S.G. #183; £525) (Image)

Est. $100-150

1891 £1 Green, lettered SC, postmarked with "Anstruther JY 20 92" c.d.s., margins clear on all sides, a good example, fine-very fine. (Sc. 124, S.G. 212, £800). (Image)

Est. $100-150

1902-11, 1/2d gray green to 1/- carmine & dull green, hinge remnants, part original gum, fresh color, the 1/2d in two shades, fine-very fine. (Sc. 127-38, $631.75) (Image)

Est. $100-150

1902-11 10/- ultramarine, used with neatly-struck "Leadenhall 1911" c.d.s., trace of red crayon mark at right, bright color and well-centered, fine-very fine. (Sc. 141, S.G. 265, £500) (Image)

Est. $100-150

1902 £1 green, used with multiple oval "Registered" datestamps, a well-centered example of this difficult stamp, fine. (Sc 142, S.G. 266, £825) (Image)

Est. $200-300

1911 Minerva head dummy stamps,block of four in dark red, showing shading at the front of Minerva’s head, on thin perforated card, trivial wrinkle to lower right stamp, very fine. (Image)

Est. $150-200

1911-12 Perkins Bacon essay, an essay for the three-quarter face head, typographed, partly cleared surround to an oval, in black on thick glazed white card, 43x49mm, fine and rare. (Image)

Est. $400-500

1911-12 Die 2 Proof 1/2d Bluish green trial color, taken from the accepted Stage 5 die, second state showing the “open H”, original gum, with watermark Crown upright, cut close as typically seen, fine and rare. (Image)

Est. $500-750

1911-12 Die 2 Proof 1d Royal Scarlet trial color taken from Stage 1b of the accepted die, original gum with watermark Crown upright, cut close but clear on all four sides; fine and extremely rare. (Image)

Est. $500-750

1911-12 4d Payne grey on white wove paper,55x57mm, handstruck MB/94 at top and ink manuscript Payne Grey No 22199 14.2.11. at bottom, attractive and rare. (Image)

Est. $150-200

1911-12 7d Small Format essay in a deep red shade, on watermark Crown paper, 40x35mm, the Crown clearly visible to the right of the design, the only such example recorded, very fine and rare. (Image)

Est. $300-400

1911-12 De La Rue Die Proof in green on thin white paper (63x66mm), showing the design adopted for use on the Post Office Savings Bank issues, creases, upper left corner trimmed; still a scarce die proof. (Image)

Est. $300-400

1913 10/- indigo Seahorse, exceptional centering, lightly hinged, beautiful deep color and proof-like impression, extremely fine. (Sc. 175, S.G. 402, £1,200) (Image)

Est. $300-400