1860-63 1p dull red "Diadem", perf. 13, horizontal strip of three, usual brownish gum, n.h., scarce multiple (SG 155, £450+) (catalogued as hinged singles) cat. $525 (Cat No. 35) (Image)

Cat. $525, Est.US$250

1867 4p red brown, block of four, h.r., minor gum creasing and faint toning, right pair with pinholes, still a rare block, fine appearance (SG 203,£480) cat. $500 (Cat No. 50) (Image)

Cat. $500, Est.US$150

1882-97 5p blue green, imperforate horizontal pair, l.h., v.f., with 2010 BPA certificate (SG 233e,£475) cat. $500 (Cat No. 65a) (Image)

Cat. $500, Est.US$250

1888 1p "View of Sydney", three different imperforate trial color proofs in rose, brown and blue green, printed on ungummed white wove paper, h.r., v.f. (Cat No. 77P) (Image)

Est.US$150

1888 Centenary, 2p Prussian Blue, imperforate horizontal pair, h.r., fine (SG 254a) cat. $375 (Cat No. 78a) (Image)

Cat. $375, Est.US$150

1888 Centennial, 6p Victoria and Coat of Arms, five different imperforate trial color proofs on white wove paper, fine and scarce (Cat No. 80P) (Image)

Est.US$250

1888-89 Centennial, 8d "Lyrebird", set of eight imperforate trial color proofs in dull yellow, vermilion, red brown, claret, lilac rose (issued color), brown, yellow green and black, all on ungummed white wove paper, h.r., couple of minor flaws, mostly v.f. (Cat No. 80P) (Image)

Est.US$250

1888-89 Centennial, 1sh Kangaroo, group of five imperforate trial color proofs in slate, blue green, vermilion, violet brown (as issued) and rose carmine, all on ungummed white wove paper, h.r., thin spots, otherwise fine-v.f. (This design was the first philatelic Kangaroo, probably an important inspiration for its more famous successor in 1913) (Cat No. 82P) (Image)

Est.US$250

1899 1sh purple brown, chalk surfaced paper, imperforate horizontal pair with "G.Pr.O N.S.W." imprint, heavy hinge remnant and gum toning, fine and attractive appearance, rare positional piece (SG 312a,£650+) cat. $1450 (Cat No. 82a) (Image)

Cat. $1450, Est.US$300

1905-10 2sh6p blue green, line perf. 11 1/2x11, block of four, l.h., fresh and fine (SG 349a) cat. $320 (Cat No. 119) (Image)

Cat. $320, Est.US$150

1907 1/2p-2sh6p set of 10 (missing 9p which was issued in 1906), h.r., fresh and fine (SG 353/64, £402) cat. $467 (Cat No. 121/131) (Image)

Cat. $467, Est.US$150