Corinphila Auction 284-290 Day 2

1840: 1 d. black, Plate 2, lettered EL, a used example with ample to large margins all round, tied to October 1840 cover to Edinburgh by early experimental usage of the Maltese Cross struck in black. Perth despatch datesamp in black on flap (Oct 7) and Edinburgh arrival cds in red (Oct 8) both displaying well on flap. Black ink was not universally introduced until February 1841, a very rare and most attractive usage. Cert. BPA (2021) Gi AS15m.