ONE PENNY: 1d red Plate 3 lower-left corner block of 4 Imperforate Horizontally ACSC 59bb (SG 17ba), small fault in the margin at left, lightly mounted at top, the lower units unmounted, hinge remainder in the lower margin & coincident thin right at the base, Cat $10,000+  (£4500+) for two pairs. Ex 'Dubois' Part I: sold for SFr2684. RPSofV Certificate (2001) as the then ACSC 59bb.

Grade A (Image1)

Estimate AU$3,500