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

1d. black, plate 7, block of four, lettered RG-SH, large even margins all around, which have been enhanced with repair to upper left stamp, each stamp neatly-cancelled with red Maltese Cross, stamps showing no "O" Flaw, a rare multiple, of great visual appeal. Cert. RPSL (2023). Gi. AS46 = £20,000.rnrnProvenance:rnHarmers, 18 November, 1986, lot 15.rn