2½d Blue Perf 'OS' Plate 1 Harrison one-line imprint pair, BW #11b(1)ze, few nibbed perfs, fine mint overall Cat $2,000 (as an unpunctured pair). (Image1)

Estimate AU$500

2½d Blue Plate 2 (crack in the horizontal margin between 2L60 & 2R55) Harrison one-line imprint block of 4, BW #11(2)ze (retouch at 2L60 not evident), two units MUH, Cat $3,750. (Image1)

Estimate AU$1,000

3d Olive Die I Plate 1 Harrison two-line imprint block of 4, BW #13(1)zd, fine MLH (one lower unit is MUH), Cat $4,250. (Image1)

Estimate AU$1,250

3d Olive Die I Plate 2 'JBC' Monogram block of 4, BW #13(2)za, lower units MUH, Cat $1,250. (Image1)

Estimate AU$800

6d Ultramarine Die II Plate 2 'JBC' Monogram single, BW #19(2)zc, couple of short perfs, well centred, MLH, Cat $3,000. (Image1)

Estimate AU$650

6d Ultramarne Die IIB Perf 'OS' variety Broken leg on kangaroo [3L6], BW #20b(3)d being the right-hand unit of a re-joined pair, nibbed perfs, hinge remnant, Cat $2,750+. (Image1)

Estimate AU$600

6d Bright Ultramarine Die IIB Plate 3 Harrison two-line imprint block of 8, BW #20(3)z, single tonespot, MLH with two lower units MUH, Cat $12,500+ (as an imprint block of 4). Extremely rare. (Image1)

Estimate AU$6,000

6d Chestnut Die IIB Plate 3 Mullett imprint block of 4 with variety White hairline from value circle to map, BW #21(3)zd, lower units MUH, Cat $600+. (Image1)

Estimate AU$240

6d Chestnut Die IIB Plate 3 Ash 'N' over 'N' imprint block of 4 with variety White hairline from value circle to map, BW #21(3)zf, MVLH in central gutter lower units MUH, Cat $450+. (Image1)

Estimate AU$160

6d Chestnut Die IIB Plate 4 Harrison 'N' over 'M' imprint block of 4, BW #21(4)z, fresh MUH Cat $800 (as a mounted mint block). (Image1)

Estimate AU$300

6d Chestnut Die IIB Plate 4 Ash 'N' over 'A' imprint pair, BW #21(4)ze, fine MVLH, Cat $200. (Image1)

Estimate AU$100

9d Violet Die IIB Plate 3 Harrison 'N' over 'MP' imprint block of 4, BW #27(3)zb, fresh MLH, with lower units MUH, Cat $1,750+. (Image1)

Estimate AU$400

9d Violet Die IIB Plate 3 Harrison 'N' over 'MP' imprint pair, BW #27(3)zc, fine mint Cat $550. (Image1)

Estimate AU$160

9d Violet Die IIB Plate 3 Mullett imprint block of 4, BW #27(3)zd, fresh MLH, with lower units MUH, Cat $1,100. (Image1)

Estimate AU$350

9d Violet Die IIB Plate 3 Ash 'N' over 'N' imprint block of 4, BW #27(3)zf, fresh MLH, with lower units MUH, Cat $1,000. (Image1)

Estimate AU$300

9d Violet Die IIB Plate 3 Ash 'N' over 'N' imprint pair, BW #27(3)zg, hinge remnant, fine mint Cat $400. (Image1)

Estimate AU$120

9d Violet Die IIB Plate 3 (mildly toned gum) & Plate 4 Ash imprint pairs, BW #27(3)zg & 24(4)zh, MLH, Cat $800. (Image1)

Estimate AU$250

9d Violet Die IIB Plate 3 Ash 'N' over 'N' imprint block of 4, BW #29(3)z, right-hand units MUH, Cat $650. (Image1)

Estimate AU$120

1/- Blue-Green Die IIB Plate 3 Ash imprint pair, BW #33(3)ze, fine mint, Cat $400. (Image1)

Estimate AU$125

1/- Blue-Green Die IIB Plate 4 Harrison two-line imprint pair (stop after printer), BW #33(4)za, fine mint, Cat $750. (Image1)

Estimate AU$200

1/- Blue-Green Die IIB Plate 4 Mullett imprint block of 8, BW #33(4)zd, mounted in central gutter, six units MUH, Cat $1,750+. (Image1)

Estimate AU$500

1/- Blue-Green Die IIB Plate 4 Mullett imprint pair, BW #33(4)ze, mint, Cat $400. (Image1)

Estimate AU$125

2/- Brown BW #37, fresh well-centred MUH, Cat $2,500. (Image1)

Estimate AU$800

2/- Maroon Plate 2 Ash 'N' over 'N' imprint block of 4, BW #38(2)zd, lower units MUH, Cat $2,750+. (Image1)

Estimate AU$800

5/- Grey & Yellow BW #44, fine MLH, Cat $450. (Image1)

Estimate AU$140