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Auction: 23015 - Stamps and Covers of Great Britain
Lot: 36

Great Britain
Line Engraved Proofs and Essays
"Rainbow" Trials
1840 (Sept.) 1d. red-brown part sheet of ten impressions from the fugitive ink trials marked "No 9 plain", "Potash", Tartaric Acid", "Prussic Acid", "Creosote and "Turps" in the hand of Joshua Bacon, the top left corner marked "A1", stamps 3, 4, 7, 8, 11 and 12 additionally stamped "no 712", most unusual and exceptionally rare, only 5 such sheets are believed to remain in private hands

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Estimate
£40,000 to £50,000

Starting price
£40000