2d grey Plate 1 punctured 'OS' No Monogram strip of 3 from the right-hand pane ACSC 6A(1)z in a block of 6, very fresh but with minor toning in the side margin and a few miniscule tone specks on a couple of stamps, very lightly mounted in the margins and a few split/reinforced perforations at lower-right, all the stamps are unmounted, Cat $22,050+ for a punctured 'OS' mounted no monogram strip plus three unmounted singles. Perfin Club of New Zealand & Australia Certificate (2021). Provenance: Arthur Gray, Lot 395, as a block of 24 (12x2), sold for US$7185. Julian Sterling Part I, Lot 131, as this block of 6, sold after the auction for $2980.

Grade A/A- (Image1)

Estimate AU$3,000

2½d indigo Plate 1 Inserted 'CA' Monogram single ACSC 10A(1)za in a block of 4, lightly mounted and with a small hinge-reinforcement at the base, Cat $2925+ for the monogram single and three mounted singles. Provenance: 'Goldmine', Lot 174, sold for $1490.

Grade A C1 (Image1)

Estimate AU$1,000

2½d indigo punctured Small 'WA' Plate 1 Inserted 'CA' Monogram single ACSC 10A(1)za in block of 4, well centred, lightly mounted on the upper units and in the margin (where there is shallow thinning at the base), the lower units are superb unmounted, Cat $3100+ for an unpunctured mounted monogram single, two mounted and one unmounted normal stamps. Provenance: 'Besancon' Part III, part of Lot 3723, under Western Australia.

Grade A/A+ (Image1)

Estimate AU$1,000

2½d indigo Plate 2 ACSC 10A (SG 25) corner block of 12 (6x2) being the top two rows from the right-hand pane, with Thick Coastline ACSC 10(2)d on Pos [1] & [7], plus unlisted varieties on Pos [2] [4] [5] [6] [10] and [12] as identified by Greg Pope (2003), characteristic variable centring, Pos [5] has a minor natural gum blemish and there is a small and unobtrusive stain in the upper margin, unmounted, Cat $4800+ for unmounted singles (£1200+ for mounted singles), plus a premium for the six varieties. Superb. Provenance: 'Besancon' Part II, Lot 3616, sold for SFr2055. The varieties identified by Greg Pope are as follows: [2R2] Colour Spot on Value Circle at 9 O'Clock [2R4] Islamd below the Right Leg of the First 'A' of 'AUSTRALIA' [2R5] Broken Tip of Cape York [2R6] Breaks in the Inner Frame at the Top above 'ALIA' of 'AUSTRALIA' [2R10] Island to the East of Cape York [2R12] Nick at the Base of the Value Tablet, between 'PE' of 'PENCE' NB: the Island below 'G' of 'POSTAGE' on [2R11] is not present, and the Retouch above the Last 'A' of 'AUSTRALIA' on [R8] has not been recorded in the Second Watermark issue.

Grade A+ (Image1)

Estimate AU$3,000

2½d indigo Plate 2 'JBC' Monogram single ACSC 10A(2)za in a horizontal pair, lightly mounted, Cat $2725+ for the monogram single and a mounted single. It is unclear why the Plate 2 monogram pieces are priced more highly than those from Plate 1. Provenance: The Morgan Collection, Lot 147, sold for £480. 'Besancon' Part III, Lot 3770, sold for SFr460.

Grade A C1 (Image1)

Estimate AU$1,000

2½d indigo Plate 2 'JBC' Monogram single ACSC 10A(2)zc in a block of 4, lightly mounted at top and in the margin (plus a small hinge mark on the face of the margin), the lower units are unmounted, Cat $3350+ for a mounted monogram single and one unmounted & two mounted singles. It is unclear why the Plate 2 monogram pieces are priced more highly than those from Plate 1. Provenance: 'Goldmine', Lot 178, sold for $1490 (described as all units being mounted).

Grade A B1 (Image1)

Estimate AU$1,000

6d ultramarine punctured 'OS' SG O33 upper-left corner block of 4 from the left-hand pane with Double Perforations at Top and in the Upper Margin ACSC 18Abba, well centred, the upper-right unit with a couple of tonespots & a few mostly minute tone specks elsewhere, lightly mounted in the top margin only where there is also minor perforation separation/reinforcing, the stamps are all unmounted, Cat $12,500+ for singles £1700++ for four normal mounted singles).. Chris Ceremuga Certificate (2018) states "genuine in all respects". Provenance: The Morgan Collection, Lot 156, sold for £1080. 'Besancon' Part III, Lot 3862, sold for SFr1690.

Grade A/B (Image1)

Estimate AU$2,000

6d ultramarine Plate 2 punctured 'OS' 'CA' Monogram single ACSC 18A(2)za in a block of 4, the monogram unit Pos [2L57] with unlisted Islands South-West of Western Australia, the upper units mounted with small hinge remainder, the lower units are superb unmounted, Cat $12,950+ for a punctured 'OS' mounted monogram single plus one unmounted & two mounted singles. Perfin Club of New Zealand & Australia Certificate (2021). Only one other 'CA' monogram punctured 'OS' block of 4 has been recorded, and no strips of 3. Provenance: Julian Sterling Part 1, Lot 143, sold for $3660.

Grade A B1 (Image1)

Estimate AU$4,000

6d ultramarine Plate 2 punctured 'OS' 'JBC' Monogram single ACSC 18A(2)zc in a block of 4, well centred, very lightly mounted at the top and in the margin below the non-monogram unit, the lower units are unmounted, Cat $12,950+ for a punctured 'OS' mounted monogram single plus one unmounted & two mounted singles. Provenance: 'Goldfarm', Lot 3086, sold for US$4310 (correctly identified but lotted under Third Watermark). Stuart Hardy's similar 'JBC' Monogram punctured 'OS' block of 4 - with a few nibbled perfs and only one non-monogram unit unmounted - sold for $4427. These two blocks are the only 'JBC' monogram punctured 'OS' blocks of 4 recorded, and there are no strips of 3.

Grade A+ B1 (Image1)

Estimate AU$5,000

6d ultramarine Plate 2 'JBC' Monogram strip of 3 ACSC 18A(2)zb in a block of 12 [2R49-54/55-60] without the side-margin at right, well centred, weak central vertical perfs that have begun to separate at the top, six units - including the monogram unit - are unmounted, Cat $33,500+ for a mounted monogram strip plus five mounted & four unmounted singles. This is the largest recorded Second Watermark 6d monogram piece. Provenance: Jack Kilfoyle, Lot 103, sold for £26. Spink (London) May 2005, Lot 803, sold for £4200. The Morgan Collection, Lot 154, sold for £8000. 'Besancon' Part II, Lot 3617, sold for SFr10,285.

Grade A B1 (Image1)

Estimate AU$15,000

1/- bright blue-green ACSC 31B (SG 28) marginal block of 8 (4x2) from the right of the sheet, unmounted, Cat $20,000+ for unmounted singles (£1520+ for mounted singles). Pristine. Provenance: Private transaction, sold for $9250 'Kangaroo Issues' Spink, Lot 102. Estimate £5000-£6000, unsold. Stuart Hardy's unmounted corner block of four sold for $5590. This is believed to be the largest recorded mint multiple of the Second Watermark 1/-. Jack Kilfoyle had a block of 12 with the 'CA' Monogram, but it is believed to have subsequently been reduced in size.

Grade A+ C1 (Image1)

Estimate AU$7,500

1/- bright blue-green Plate 1 Inserted 'CA' Monogram single ACSC 31B(1)za, rich colour & exceptional centring, one nibbled perf at lower-left otherwise superb unmounted, Cat $9000+ for mounted. Beautiful. Provenance: Charles Leski auction 7.2.2021, Lot 105, sold for $10,930.

Grade A A1 (Image1)

Estimate AU$8,000

1/- deep dull green Plate 1 Inserted 'CA' Monogram single ACSC 31D(1)za, very well centred, neat 'ALEXANDRIA/ 29MR16/NSW' cds, Cat $9000 for mounted mint in a normal shade (unpriced used). A rare postal usage, made all the more desirable for the scarce shade which the ACSC prices at $1500 for a used single, compared with $100 for a normal shade. Provenance: Status International auction of 7.9.2017, Lot 1083, sold for $8940. Far more attractive than Arthur Gray's untidily cancelled similar stamp that sold for US$1910. The ACSC generally does not price used monograms; where it does, this is invariably for CTO, as in the case of the First Watermark 5/- where CTO is priced at approximately 75% of the mounted mint price. We contend that postally used monograms as a class are scarcer (and arguably more attractive) than their CTO equivalents, and should be priced as such where known.

Grade A B1 (Image1)

Estimate AU$4,000

1/- deep bright blue-green Plate 1 Inserted 'JBC' Monogram single ACSC 31B(1)zc, a couple of slightly nibbled perfs at left, neat hinge remainder, extremely fresh, Cat $9000. Provenance: 'Fordwater', Lot 85, sold for £6500. 'Besancon' Part III, Lot 3772, sold for SFr4115.

Grade A- C2 (Image1)

Estimate AU$4,000

2/- brown Plate 2 'CA' Monogram single ACSC 36(2)za, very fresh, lightly mounted, Cat $40,000. Extremely rare: the Australian Commonwealth Specialists' Catalogue states in footnote 5 that "only three [sic] 'CA' monograms can be traced, a mint strip of 3 in the Royal Collection, and three mint singles, one in the Australian National Philatelic Collection. Depending on how this is to be interpreted, that leaves no strips of 3 and only one or two other 'CA' monogram singles in private hands. Provenance: 'Goldmine', Lot 201, sold for $23,850.

Grade A C1 (Image1)

Estimate AU$20,000

2/- brown Plate 2 'JBC' Monogram single ACSC 36(2)zc, well centred, thinned in the margin behind the monogram, Cat $30,000. Rare: the Australian Commonwealth Specialists' Catalogue records seven 'JBC' monogram items comprising singles x3, pairs x3 (one is used) and a block of 4 (in the Royal Collection), and no strips of three. Provenance: 'Goldmine', Lot 202, sold for $11,925 (the thin was not mentioned).

Grade B B1 (Image1)

Estimate AU$7,500

5/- deep grey & chrome-yellow 'CA' Monogram single ACSC 43Bza in a horizontal pair, deep rich colours, characteristic irregular perforations, the monogram slightly trimmed, neat hinge remainder, Cat $36,500+ for a mounted monogram single and one mounted single. Rare: the Australian Commonwealth Specialists' Catalogue records nine 'CA' monogram pieces comprising one single, six pairs (one in the Australian National Philatelic Collection), a non-corner block of 8, and one strip of 3 (in the Royal Collection). Provenance: The Morgan Collection, Lot 174, sold for £14,400 (described as with "hinge remnant", which has since been skillfully removed). 'Besancon' Part III, Lot 3774, sold for SFr10,890.

Grade A C2 (Image1)

Estimate AU$15,000

5/- deep grey & chrome-yellow 'JBC' Monogram single ACSC 43Bzc in a horizontal pair, deep rich colours, characteristic irregular perforations, the monogram a little trimmed, lightly mounted, Cat $36,500+ for a mounted monogram single and one mounted single. Rare: the Australian Commonwealth Specialists' Catalogue records ten 'JBC' monogram pieces comprising four singles (one used), four pairs (one in the Royal Collection), a block of 4 (also in the Royal Collection), and one strip of 3 (with the Watermark Inverted). Provenance: The Morgan Collection, Lot 175, sold for £13,200 (described as with "hinge remnant", which has since been skillfully removed). 'Goldmine', Lot 208, sold for $17,890.

Grade A C2 (Image1)

Estimate AU$15,000

5/- grey & chrome-yellow with the Watermark Inverted ACSC 43Ba (SG 30w) and the Kangaroo Slightly Misplaced into the Great Australian Bight, marginal example from the top of the sheet, exceptional centring, unmounted, Cat $6500 for a normal unmounted stamp or $2000 for the variety mounted (£1300+ for the variety mounted). The ACSC does not price the inverted watermark as unmounted. Superb. Probably the finest example we have offered. Provenance: Private transaction. NB: although the the misplacement of the Kangaroo is obvious, it is not significant enough, by reference to the Australian Commonwealth Sprecialists' Catalogue definition, to qualify as a listed variety. However, this stamp is as close to a Misplaced Kangaroo as one might hope to find on the Second Watermark 5/-. The ACSC records only one example, with a 3½mm misplacement out of the map at upper-left, and it is used (ACSC 43ca, Cat $7500).

Grade A+ A1 (Image1)

Estimate AU$2,500

2d grey ACSC 5 (SG 24) block of 4, the first unit with Extra Islands around Tasmania ACSC 6(2i), well centred, minor bend at U/L, light overall gum-aging/toning, unmounted, Cat $1700+ for unmounted singles (£400+ for mounted singles) + a significant premium for the variety (Cat $375 for mounted).

Grade B B1 (Image1)

Estimate AU$400

2d grey ACSC 6 (SG 24) Plate 2 interpanneau block of 8 (4x2) with central gutter from the base of the sheet, well centred, a band of "suntanning" at the base of the lower margin and affecting the perforations at right, very lightly mounted in the margin at base otherwise unmounted, Cat $3400+ for unmounted singles (£800++ for mounted singles). Ex 'Besancon' Part III, sold for SFr363.

Grade A/A- (Image1)

Estimate AU$600

9d violet with the Watermark Inverted ACSC 25a (SG 27w), well centred, indistinct but decipherable 'ROMA/ AP21/1917/QUEENSLAND' postal cds, faint stain at the top and minor scuff mark at left, Cat $5000 (£1800). [The ACSC states about two dozen used examples are recorded, of which "about half have non-postal markings". This is apparently the first example recorded from Roma]

Grade B B1 (Image1)

Estimate AU$600

5/- grey & chrome with the Watermark Inverted ACSC 43a (SG 30w), well centred, miniscule tonespots on the gum, Cat $2000 (£1300).

Grade A- B1 (Image1)

Estimate AU$600

PUNCTURED 'OS': 2d to 5/- complete, variable centring but the 9d 2/- & 5/- are all very well centred (which is most unusual for the 9d & 2/-), a few minor defects, cds cancels, Cat $2000+ (£680). [It is generally accepted that the 2½d was not punctured 'OS'] (Qty 6)

Grade A/B (Image1)

Estimate AU$600