£1 Grey, fresh MUH, Cat $3,750. (Image1)

Estimate AU$1,200

£1 Grey, mint, mild aging, Cat $1,000. (Image1)

Estimate AU$200

£1 Grey block of 4, BW #53, with fine registered cds, Cat $2,000+. Blocks are very rare. (Image1)

Estimate AU$1,200

£1 Grey pair, BW #53, with Darwin cds, Cat $1,000+. (Image1)

Estimate AU$500

£1 Grey perf 'OS', BW #53b, mint, Cat $3,250. (Image1)

Estimate AU$800

£1 Deep Grey block of 4 with 'SPECIMEN' type C ovpt, left units Damaged C, right units Shaved P, BW #53xc, bottom left unit MUH, others MLH, Cat $7,500. A fine and rare block, particularly with the pairs of ovpt varieties. Only one block of 4 with both sub-types recorded. (Image1)

Estimate AU$5,000

£1 Deep Grey with 'SPECIMEN' type C Sub-type 1a (damaged 'S' & 'C'), BW #53xe, MLH, Cat $3,750 (Image1)

Estimate AU$1,200

£1 Deep Grey with 'SPECIMEN' type D, BW #53xg, MLH, Cat $375. (Image1)

Estimate AU$100

£1 Grey, BW #54, MVLH, Cat $1,000. (Image1)

Estimate AU$300

£1 Grey block of 4, BW #54, fine used, Cat $1,800. Blocks are rare (Image1)

Estimate AU$1,000

£1 Grey Ash Imprint block of 4 with varieties i & l, BW #54z, lower units MUH, Cat $17,500+. (Image1)

Estimate AU$5,000

£1 Grey Ash Imprint pair with varieties i & l, BW #54za, MUH, Cat $6,000+. (Image1)

Estimate AU$2,500