1851 Prince 6d dark grey, imperf Proof, opt SPECIMEN vert in red, India paper. Superb UN as made, 4 margins, light crease. SG 2(p) cat £50,000 for normal, Unitrade 2TCvii cat C$300. (P) (Image1)

Estimate AU$200

1851 Prince 6d black, imperf Proof, opt SPECIMEN vert in red, India paper. Superb UN as made, 4 margins. SG 2(p) cat £50,000 for normal, Unitrade 2TCix cat C$350. (P) (Image1)

Estimate AU$200

1851 QV 12d Black, imperf Proof, opt SPECIMEN vert in red, India paper mounted on card. Superb UN as made, 4 margins. SG 4(p) cat £200,000 for normal, Unitrade 3Pi cat C$2500. (P) (Image1)

Estimate AU$2,000

1852 QV ½d Rose, imperf Proof, opt SPECIMEN vert in green, India paper. Superb UN as made, bottom marginal, 4 margins. SG 17(p) cat £1000 for normal, Unitrade 18Pi cat C$300. (P) (Image1)

Estimate AU$200

1855 Cartier 10d deep blue imperf on handmade paper. VFU full margins close at base, with variety ink 'splotch' UL applied during printing. SG 15 cat £1800. A rare attractive classic. (P) (Image1)

Estimate AU$700

1858-59 Prince 6d brown-violet, perf 11¾. Fresh M, original gum, expertly repaired LL cnr, superb appearance. SG 27a cat £18,000, Unitrade 13 cat C$75,000/$25,000. Major rarity. 2018 Scheller photo cert. (P) (Image1)

Estimate AU$4,500

1859 Beaver 5c red, imperf Proof opt SPECIMEN horiz in black, India paper. Superb UN as made, 4 margins. SG 31/32(p) cat £450 for normal, Unitrade 15TCiu cat C$250. (P) (Image1)

Estimate AU$150

1859 Prince 10c black-brown, imperf Proof opt SPECIMEN vert in red, India paper. Superb UN as made, 4 margins. SG 33(p) cat £18,000 for normal, Unitrade 16Pi cat C$450. (P) (Image1)

Estimate AU$300

1930-31 Library 10c olive-grey horiz IMPERF pr, probably from proof sheet. VF fresh UN, 4 large margins. Unitrade 173a cat C$2000/1500. SG 299a cat £1800 as M imperf. (P) (Image1)

Estimate AU$400

1933 UPU Congress 5c blue, IMPERF vert pr. Superb fresh MLH, all 4 margins. Unitrade 202a, SG 329 footnote cat £850. Only 75 prs existed. (P) (Image1)

Estimate AU$1,000

1937-38 Air 6c blue, right marginal horiz IMPERF pr. Superb fresh MNH, all 4 margins. Unitrade C6a, SG 371 footnote cat £850. Only 75 prs existed. PF photo cert. (P) (Image1)

Estimate AU$900

1942-43 Special Delivery War Effort 17c ultramarine, IMPERF vert pr. Superb fresh MNH, all 4 margins. Unitrade CE1, SG cat S14 footnote cat £900. Only 75 prs existed. (P) (Image1)

Estimate AU$1,100

1949 OHMS Opt KGVI Pictorial set 1c-$1, all cnr CBN imprint blks of 4. VF fresh MNH. SG O162-71(var) cat £1100+ as singles, plus large premium for imprint blks. Unitrade O1-O10 & CO1 cat C$3000 for these blks. Rare & attractive set. (10 blks) (P) (Image1)

Estimate AU$1,500