Lot 40020 – 1866, 10r vermilion, horizontal block of 27 (9×3)

1866, 10r vermilion, horizontal block of 27 (9×3), refulgent colour, displaying the typical irregular asymmetry of the spacing in the vertical perforation, with full o.g., few hinge reinforcements between the fifth and sixth row, of good appearance and preservation for this issue; unique, the third largest multiple recorded; ex Dr. de Amaral Machado.