Lot 609, Great Britain 1840 Penny Black XF, plate 6 with red Maltese Cross cancel October 18, 2021 by Sparks Auctions Lot 609 Great Britain #1 1840 1d Black Queen Victoria Imperforate, Plate 6, used with red Maltese Cross cancel, from position DC, with four very large and even margins, extremely fine. Scott CV U$375.