inscription, large or very large margins other sides showing parts of four adjoining stamps. NA, NB and OA showing vertical guide lines and NA also with plate scratch between the Queen's eye and nostril, tiny scissor cut in margin at top clear of frame line; wonderful rich colour, a rare block. B.P.A. Certificate (1996)" /> unused Block of Four Plate 3, NA-OB, an exceptionally fine fresh mint marginal block of four with large part original gum, from the left of the sheet showing<I> "CE 2d per Label 2/- Per Row of 12. £2--"</I> inscription, large or very large margins other sides showing parts of four adjoining stamps. NA, NB and OA showing vertical guide lines and NA also with plate scratch between the Queen's eye and nostril, tiny scissor cut in margin at top clear of frame line; wonderful rich colour, a rare block. B.P.A. Certificate (1996) | Christie's