Lot 40031 – 1866, 20r brown lilac, vertical block of six, cancelled

1866, 20r brown lilac, vertical block of six, cancelled by segmented cork cancels and two different red handstamps at left, faint and almost imperceptible crease at base; of three used blocks of six, this is unique being vertical, and the “tallest” multiple used for this stamp; ex Dr. de Amaral Machado.