GB postage stamps

Great Britain 1915 2s6d pale brown "Seahorses" (Worn plate), SG407var. A superb unused, with original gum, left hand marginal block of four (one st...

Great Britain 1913 5s rose carmine "Seahorses" Specimen, SG401s. A very fine well centred unmounted mint, with full original gum, example printed b...

Great Britain 1918 2s6d chocolate brown "Seahorses" variety, SG414var. A superb unmounted mint, with full original gum, top right hand marginal exa...

Great Britain 1929 £1 Postal Union Congress (P.U.C.) Specimen, SG438s. A superb unmounted mint, with full original gum, example overprinted "SPECIM...

Great Britain 1913 £1 dull blue-green "Seahorses", SG404var. A superb perfectly centred unmounted mint, with full original gum, example printed by ...

Great Britain 1913 10s indigo-blue "Seahorses", SG402. A very fine and fresh unmounted mint, with full original gum, example printed by Waterlow. G...

Great Britain 1911 7d Hentschel essay. A very fine imperforate colour trial printed in dutch brown (Manders Bros ink No.91) on white unwatermarked ...

Great Britain 1935 2d orange (small format, watermark sideways), SG442. A superb used example tied to a 'Marsh' envelope by a crisp Norwood, SE.19 ...

Great Britain 1934 1½d "Photogravure" essay, SG441var. A very fine vertical pair of perforated essays printed by Harrison & Sons on "Harrison" ...

Great Britain 1913 9d Agate imprimatur, SG392var. A superb unmounted mint, with full original gum, left hand marginal imperforate imprimatur from t...

Great Britain 1912 1d bright scarlet (No Watermark), SG345var. A very fine unused, with original gum, left hand marginal example of this difficult ...

Great Britain 1934 2s6d-10s “Seahorses” (Waterlow re-engraved printing) imprimaturs, SG450/2var. A superb unmounted mint, with full original gum, s...

Great Britain 1913 £1 green "Seahorses" specimen, SG403s. A very fine and fresh well centred unused example with original gum printed by Waterlow, ...

Great Britain 1912 2s0d Booklet (Watermark Simple cypher), SG BB4. A very fine and fresh example of this difficult early King George V booklet with...

Great Britain 1915 2s6d yellow brown "Seahorses" (Watermark Reversed), SG406wj. A very fine unmounted mint with full original gum example of this s...

Great Britain 1915 10s deep blue (worn plate) "Seahorses", SG411var. A very fine and fresh unmounted mint with full original gum bottom marginal ex...

Great Britain 1924 2d Orange (No Watermark), SG421a. A very fine unmounted mint with original gum example of this rare King George V watermark vari...

Great Britain 1913 £1 dull blue green "Seahorses", SG404. A superb perfectly centred unmounted example with full original gum, printed by Waterlow....

Great Britain 1912 9d agate imprimatur, SG392var. A very fine unused imperforate imprimatur with original gum from the Post Office registration she...

Great Britain 1913 1s bistre (Watermark inverted & reversed), SG395wk. A very fine unmounted mint, with full original gum, corner interpanneau ...

Great Britain 1911 3d Henschel half tone essays (Small format). A very fine group of stamp essays in four different colours, red-brown, blue, brown...

Great Britain 1911 3d Engravers Sketch Die for Unissued Value, SG.PFISCAL. A very fine cut down die proof mounted on card (58 x 90mm) in maroon wit...

Great Britain 1915 5s carmine "Seahorses", SG409var. A very fine well centred unmounted mint, with full original gum, example printed by De La Rue....

Great Britain 1910 6d Hentschel colour essay. A very fine example printed in grey-brown on white wove paper (32 x 37mm) with manuscript "Brown No.2...