2d Recess Type A overprinted 'OS' marginal block of 4 from the left of the sheet with One Plate Dot above Red Line ACSC 146(OS)z, a couple of uneven perfs, small adhesion on the gum in the margin and one unit with a couple of tiny aging marks, unmounted, Cat $3750+ for mounted.

Grade A- C2 (Image1)

Estimate AU$1,000

2d Recess Type A overprinted 'OS' marginal block of 4 from the right of the sheet with Four Plate Dots below Red Line ACSC 146(OS)zc, a couple of characteristic minor gum bends, unmounted, Cat $4750+ for mounted. Tillie Mitchell's similar unmounted block (ex Arthur Gray) sold for $3068 (when catalogued at $2500).

Grade A- B1 (Image1)

Estimate AU$2,000

2d Recess Type B overprinted 'OS' marginal block of 4 from the right of the sheet with One Plate Dot below Red Line ACSC 146(OS)za, one unit with a small aging mark and another mark in the margin, the upper units with small hinge remainders, the lower units unmounted, Cat $3750+ for mounted.

Grade A- A1 (Image1)

Estimate AU$1,000

2d Recess Type B overprinted 'OS' John Ash Imprint block of 4 ACSC 146(OS)ze, four strikes of 'SPECIAL/ 24AU33/SYDNEY' cds, Cat $200 for unmounted (unpriced used). Postally used blocks are much scarcer than mint.  

Grade A B1 (Image1)

Estimate AU$150

2d Recess Type B overprinted 'OS' complete sheet of 80 (10x8) with John Ash Imprint but without Plate Dots (obliterated by perfs) ACSC 146(OS)Bze, light creases or gum bends affecting around a dozen units do not detract from the very fine facial appearance, two hinge remainders in the upper margin but all stamps unmounted, Cat $2860+.

Grade A- (Image1)

Estimate AU$600

3d blue overprinted 'OS' ACSC 147(OS) (SG O135) block of 24 (4x6) from the top of the sheet with with large Perforation Guide Dot in the upper margin (unlisted in the ACSC), very well-centred, very fine unmounted, Cat $960+ for normal (£504+ for mounted). The perforation guide dots - like the plate dots - were usually guillotined-off before the sheets were delivered to Post Offices.

Grade A A1 (Image1)

Estimate AU$250

3d blue overprinted 'OS' marginal blocks of 4 from the upper-left corner of the sheets with Plate Numbers '1' to '4' ACSC 147(OS)z-zc, well centred, '1' & '2' unmounted, '3' with one lower unit with a small hinge remainder, '4' with the two upper units lightly mounted, Cat $1250 for two mounted & two unmounted blocks.

Grade A/A- (Image1)

Estimate AU$300

3d blue overprinted 'OS' corner block from the upper-left of the sheet with Plate Number '4' ACSC 147zc CTO with 'BRISBANE/30MR32/QUEENSLAND' cds, well-centred, a couple of uneven perfs, full unmounted original gum, a couple of characteristic gum bends, Cat $375 for unmounted mint (unpriced used/CTO).

Grade A- A2 (Image1)

Estimate AU$100

3d blue overprinted 'OS' John Ash Imprint block of 4 ACSC 147(OS)zd, four strikes of 'SYDNEY/ 15MY33/ 1' cds, Cat $375 for unmounted (unpriced used). Postally used blocks are much scarcer than mint.

Grade A B1 (Image1)

Estimate AU$200

3d blue overprinted 'OS' complete sheet of 80 (10x8) with John Ash Imprint and Plate Number '3' at upper-left ACSC 147(OS)Bzb & 147(OS)Bzd, also Perforation Guide Dots in the left, right, upper & lower margins (unlisted in the ACSC), the upper-left corner unit with a diagonal crease, this and the opposite corner unit with some gum aging extending into the margins, a few other units with light gum bends, the stamps all unmounted, Cat $3630+.

Grade A/B (Image1)

Estimate AU$800

2d Recess Type B & 3d blue overprinted 'OS' tied by 'AIR MAIL/28SE34/BRISBANE QLD' cds to cover endorsed "By first airmail flight Melbourne to Hobart", Victorian Centenary Lyre Bird imperforate cinderella affixed alongside on face but not cancelled, Sydney 'AIR MAIL' transit and two Hobart '-1OC34' arrival b/s, Cat $800 for the 3d on cover ($450 for the 2d Type B). Superb. The endorsement was incorrect: presumably the cover was intended to be carried on the inaugural Melbourne-Launceston flight which took place on 2.10.1934; instead it appears to have been carried directly to Hobart on the regular service.

Grade A+ (Image1)

Estimate AU$100