Auction 309-320 - Great Britain 1840–1841 Europe & Overseas - Day 5

1867, 1 s. green, Plate 4, lettered KK, imperforate, overprinted 'SPECIMEN' type 6, wmk. spray, marginal with part inscription top, original gum, good to large margins all round, fresh colour, a very fine example SG J104s = £500.rnProvenance: Ex. Dr & Mme. Serval of Belgium, Harmers, London, 15-16th March 1976, lot 274 (part of pair KK-KL).