Lot 51231 – 1910-13 Printer’s File Stamps 3d purple and ochre perforation 15 (printing 10) in lower marginal block of four

1910-13 Printer’s File Stamps 3d purple and ochre perforation 15 (printing 10) in lower marginal block of four with four security punch holes, washed and without gum, slight soiling. Despite being an ex archive sample, a multiple of the perf 15 3d is a considerable rarity; ex Blanic.