6d Chestnut on cover to Austria tied by ‘BANZ/1930[penguin]-31/ANTARCTIC RESEARCH EXP.’ handstamp in black. Rare overseas destination. (Image1)

Estimate AU$800

1/- Blue-Green with uncatalogued Broken diagonal stroke in value circle, Plus 3d Die I 3rd wmk with Inking flaws around Cape York. (2) (Image1)

Estimate AU$80

2/- Maroon Perf 'OS' BW #39b, well centred fresh MUH, Cat $850. (Image1)

Estimate AU$400

2/- Maroon rare Plate 2 Ash (N over A) imprint block of 4, BW #39(2)z, three units MUH, Cat $2,250. (Image1)

Estimate AU$2,250

2/- Maroon Plate 2 Ash 'N' over 'N' imprint pair BW #39(2)za, postally used and very scarce thus, Cat $1,000 (as a mint pair). (Image1)

Estimate AU$500

5/- Grey & Yellow-Orange Ash two-line 'N' over 'N' imprint pair, BW #45za with variety White flaw off NSW coast [R55], well centred, fresh MUH, Cat $3,000. (Image1)

Estimate AU$2,500

10/- Grey & Pink Ash imprint pair, BW #49za, MLH, Cat $4,000. A scarce imprint absent from most collections. (Image1)

Estimate AU$3,000