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

1840, Rainbow Trial, 1 d. red-brown, state III, small crown watermark sideways, large margins all round, judging by the appearance probably used in the cleaning tests, with residue of some sort of varnish or gum to the front and reverse, rare example. Gi = £8'000.rnrnProvenance: Phillips, 9 June 1988, lot 214.