Lot 10023 – 5pa brown, perf. 12 1/2 x 13 1/3, mint and mint nh, top left corner sheet marginal block of twelve

5pa brown, perf. 12 1/2 x 13 1/3, mint and mint nh, top left corner sheet marginal block of twelve, with border marking in the form of a thick coloured line on the top sheet margin, plus pos. 12 shows “holes in Pyramid”, fresh, very fine and an extremely rare positional multiple.A unique showpiece.