GB Stamp Errors, Varieties & Oddities

A selection of GB postage stamp errors, varieties and oddities available from Apollo’s Lots: including listed and unlisted varieties and other interesting and quirky items. This page is updated regularly.

A Dull Gem – £5 Machin in unissued sepia brown colour

19th May 2026 Update: This page is currently being redesigned. New items are being added. Please bear with us!

Where available, links will take you to current listings on eBay.
Visit our ebay store to view all current items or check out our errors & varieties page at ebay.

Listed Varieties

SG70Wk 6d pale lilac Watermark Inverted & Reversed. A good/fine used example of this scarce variety unpriced by Stanley Gibbons.
View SG70Wk example on eBay

£59

SG164Wi ½d Deep Green WATERMARK INVERTED. A good used example of this scarce variety – Spec. K1 (1)c
View SG164Wi example on eBay

£295 or Best Offer

SG421Wi Watermark Inverted 2d Orange (Block Cypher). An unmounted mint example with bottom margin.
View SG421Wi Marginal on eBay

£35

SG421Wi Watermark Inverted 2d Orange (Block Cypher). An unmounted mint example of Control E26.
View SG421Wi Control on eBay

£55

SG421b Watermark Sideways 2d Orange (Block Cypher). An unmounted mint example.
View SG421b example on eBay

£45.00

SG476b 2/6 yellow-green Major Re-entry. An unmounted mint marginal pair with re-entry on right stamp.
View SG476b re-entry on eBay

£39

SG478ab Blot on Scroll Variety 10/- Dark Blue. A used example.
View SG478ab on eBay

£15.95

SG478 Scratch flaws on both left & right scrolls 10/- Dark Blue. A used example of Spec Q32f.
View SG478 scroll flaws on eBay

£22

SG660Wi 6d Watermark Inverted. Unmounted mint examples from the non-phosphor Forth Road Bridge 1964 issue.
View SG660Wi on eBay

£3.49

SG694Wi 6d Watermark Inverted. Unmounted mint examples from the non-phosphor World Cup 1966 issue.
View SG694Wi on eBay

£4.95

SG695pWi 1/3 Watermark Inverted. Unmounted mint examples from the phosphor World Cup 1966 issue.
View SG695pWi on eBay

£3.75

SG884y-SG886y Literary Anniversaries 1971 set with all stamps missing phosphor bands. Unmounted mint.
View SG884y-SG886y on eBay

£24.95

SG S16 3p Ultramarine Scotland displaying a ribbed paper variety. A nice unmounted mint block of 4.
View SG S16 ribbed paper block on eBay

£14.95

SG S16 3p Ultramarine Scotland displaying a ribbed paper variety. Unmounted mint singles available.
View SG S16 with ribbed paper on eBay

£5.95

SG X870y 6p light emerald phosphor omitted/missing. An unmounted mint example.
View X870y on eBay – second item here

From £18.95

SG744y 1/9 Dull Orange & Black phosphor omitted. Unmounted mint examples.
View SG744y on eBay

£12.95

SG1667 1st Orange-Red with the one band left of centre. Unmounted mint example from Profile on Print booklet.
View SG1667 variety on eBay

£11.95

SG X939 10p Orange-Brown perforation shift down. An unmounted mint pair.
View SG X939 perf shift on eBay

£14.95

SG X883y Phosphor Omitted 9p Deep Violet. Unmounted mint examples available.
View SG X883y 9p on eBay

£3.49

Scotland SG S32y 11p Scarlet Phosphor Omitted. Multiple unmounted mint examples available.
View SG S32y 11p on eBay

£3.49

SG744y Phosphor Omitted 1/9 Dull Orange & Black. A fresh unmounted mint block of 4.
View SG744y 1/9 on eBay

£39

SG O67 Open Top To ‘S’ variety 9d GOVT PARCELS. A used example of the scarce L28c specialised listing.
View SG O67 open top to S on eBay

£65 or Best Offer

SG O49 SPLAYED ‘Y’ Variety ARMY OFFICIAL 1d Scarlet. A used example of the MO20h specialised listing.
View SG O49 Splayed Y on eBay

£18.50

SG O44 SPLAYED ‘Y’ Variety ARMY OFFICIAL 2½d Purple/Blue. A Mint MLH example of the scarce L39a specialised listing.
View SG O44 Splayed Y on eBay

£49 or Best Offer

SG O41a ‘I for L’ Variety ‘ARMY OFFICIAI’ ½d Vermilion. A good used example L36c specialised listing.
View SG O41a ARMY OFFICIAI on eBay

£24

SG634 2½d with error in the lettering of the month ’26 INF 1963′. Good Used.
View this CDS error on eBay

£12.95

Place holder

Place holder

The following items are examples previously sold. Similar material may become available – see current listings here.

SG492A 3d Violet ‘Seven Berries’ Flaw. A mint lightly hinged example.

£6.50

KEVII Imperf 1d Blue Bruckmann of Munich Proof, Zig-zag Watermark, unmounted mint.

£79

SG778c 5d Red CUNARD Inscription Missing Error. A fine unmounted mint example of this scarce stamp. SOLD

£95

SG642 3d Red Cross ‘Repaired Cross’ Flaw Spec W37b. A good used example of this listed variety.

£12.95

SG691 1/3d ‘Broken ‘D” Flaw Spec W87a (R. 14/2). Good used showing Broken D on bottom stamp.

£16.95

SG639p 2½d ‘Shaded Diadem’ Flaw Spec. W34b (Dot R. 20/6). A good used example of this variety.

£7.95

SG O41a ARMY OFFICIAL ‘I for L’ Error ½d Vermilion. A fair mint hinged example with small issues.

£69

SG O43a ARMY OFFICIAL ‘I for L’ Error 1d Lilac. A presentable mint hinged example of this scarce stamp.

£65

SG O52 ARMY OFFICIAL Short ‘M’ 6d Pale Dull Purple. A good use example of this overprint. No faults just an average/heavy cancellation.

£295

SG X870y 6p light emerald phosphor omitted/missing. An unmounted mint example of this specialised Machin error.

£35

SG213Wi ½d Blue-Green Inverted Watermark. An unmounted mint example of this scarce watermark variety. SOLD

£65

SG207a 5d dull purple & blue ‘Sliced spandrel above leaf’, spec K36d. A clean unmounted mint example of this scarce printing error.

£95

SG476aa 2/6 brown Mark in Shield variety (Q29a R.1/7). An unmounted mint top marginal of this sought after stamp.

£65

SG640 4d Lifeboats displaying ‘FLOATING SAILS’ variety. Unmounted mint non-listed variety.

£9.95

SG X955a 18p deep olive-grey ‘Imperf Pair’. Unmounted mint with clear margins all around.

£49

SG695 1/3 ‘Darned Stocking’ Flaw & other flaws. Unmounted mint block with 2 other minor flaws.

£10.95

SG2039b & SG2040b Dagger Perfs 2nd & 1st Class. A nice pair of rare Machins, a sought after perforation variety.

£325

SG X851Ly 2½p Phosphor Omitted Booklet Pane. Unmounted mint.

£24.95