10/- grey & pink John Ash Imprint block of 4 ACSC 50Aza with Pos [R55] Open-Mouthed Kangaroo ACSC 50(V)vb, some very minor gum-aging towards the top, mounted on the upper units and in the margin, the lower units are unmounted, Cat $10,000+ for a mounted block of 4. Ex Lord Cornwallis, 'Besancon' Part III and 'Artemis': sold for $2635.
£2 black & rose-carmine ACSC 58 (SG 138) marginal example from the base of the sheet, well centred & lightly mounted, Cat $5750 (£4250). A very classy stamp.