Lot 20557 – 1912-24 £1 Dull Purple & Black on red in mint lower right corner marginal block of four with plate number

1912-24 MCA £1 dull purple and black on red in mint lower right corner marginal block of four with plate number, a few minor gum bends and a small spot on top right stamp, a little bit of margin added at top right, a very attractive and rare multiple, ex Barclay (SG £560+)