Stamp Duty Overprints 1885/87: Stamp Duty 5 s. lilac & green overprinted POSTAGE in black, wmk. NSW upwards, perf. 12 x 10, an unused block of four of brilliant fresh colour, gum wrinkles on full unmounted og. A very rare multiple - the sole such recorded by Chris Ceremuga in unmounted condition. Cert. Ceremuga (2012) Gi = £ 3'800+.rnrnProvenance: Australia Post Archive.

Stamp Duty Overprints 1885/87: Stamp Duty £ 1 lilac & claret overprinted POSTAGE in black, wmk. NSW upwards, perf. 12, an unused example, marginal from right of sheet and imperforate between stamp and margin, of fine rich colour, one or two blunted perfs at left, large part og. An exceptional example of an extremely rare stamp, with just 100 stamps believed to have been issued (and thus no more than five with the imperforate margin). Cert...

1886/87: 1 d. scarlet and 2 d. deep blue, wmk. NSW, the unused selection with 1 d. scarlet, perf. 10, 1 d. scarlet comb perf 11 x 12, a single example and a horizontal strip of three; 2 d. deep blue perf 10 single and 2 d. deep blue, comb perf. 11 x 12 in a fine block of six (2 x 3) marginal from left of sheet - this last of superb colour and appearance, large part og. A scarce group Gi = £ 500+.

Centenary Issue 1888 (May 1): Emu 2 d. Prussian blue, wmk. NSW, perf. 11 x 12, an unused block of four, marginal from left of sheet and Imperforate between stamp and margin, showing part imprint "(2d.) per Label. 1s. per Row", fresh and very fine, unmounted og.

Centenary Issue 1890: Arthur Philip 20 s. cobalt-blue, wmk. "20 / NSW", perf. 10, an unused example in a deep shade, well centred and with reasonable perfs. for this stamp, large part og. A very scarce stamp Gi = £ 500.

Centenary Issue 1890: Arthur Philip 20 s. ultramarine, wmk. "20 / NSW", perf. 12, an unused example, marginal from base of sheet with "CP" Monogram, well centred and with good perfs., usual minor gum wrinkles on large part og. Attractive and scarce Gi = £ 450+.

Stamp Duty Overprinted 1894/1904: Stamp Duty 10 s. mauve & claret overprinted POSTAGE in blue, wmk. second NSW sideways, perf. 10, an unused example, well centred and of rich colour, large part og. A rare stamp Gi = £ 600.

Stamp Duty Overprinted 1894/1904: Stamp Duty 10 s. violet & claret overprinted POSTAGE in blue, perf. 11, unused examples (2), in differing shades of violet, both with minor bends, and 10 s. violet & claret, perf. 12 x 11, fresh colour, part or large part og. Scarce group Gi = £ 1'350.

Stamp Duty Overprinted 1894/1904: Stamp Duty 10 s. violet & rosine overprinted POSTAGE in blue, perf. 11, on chalk surfaced paper, an unused example, well centred and of fresh colour, large part og. Fine and scarce Gi = £ 425.

Diamond Jubilee 1897 (June 22-28): Jubilee 1 d. (1 s.) green & brown and 2½ d. (2 s. 6 d.) gold, carmine and blue, the set of two values, each overprinted "Specimen" in red, large part og. Scarce and fine set Gi = £ 300.

Courbould Reissue 1897/99: 5 s. reddish-purple, wmk. "5/-", perf. 11, an unused block of four, marginal from top of sheet, well centred, fresh and fine, unmounted og. A most attractive multiple Gi = £ 200+.

Colour Changes 1897/99: 6 d. emerald-green and 6 d. orange-yellow (shades), wmk. Crown over NSW, the unused selection with 6 d. emerald perf. 11 x 12 (two), 6 d. emerald perf. 12, and a rare corner marginal "1888" imprint example overprinted "Specimen" in black; 6 d. orange-yellow perf. 11 x 12 in an imprint marginal block of six and single examples (2) perf. 12 x 11½ in each shade. An attractive group (8 items) Gi = £ 390+