1931 Kingsford Smith 'OS' Set with clean gum and excellent centering, BW #141(OS),142(OS), 'O' on 2d distorted (forgery), MUH, Cat $1,175. A total of only 28,000 overprinted sets were issued. (2) (Image1)

Estimate AU$180

1931-38 6d Kingsford Smith Airmail Overprinted 'OS' Plate 2 Ash imprint block of 6 with Re-entry to STRALI and plane's wing, BW #144(OS)ze, lower units MUH, Cat $575. (Image1)

Estimate AU$110

1932 5/- Sydney Harbour Bridge with typical gum crazing and minor gum bend. (Image1)

Estimate AU$380

1932 5/- Sydney Harbour Bridge CTO with full gum, hinge rem. (Image1)

Estimate AU$140

1934 Victoria Centenary 1934 (Dec 12) registered envelope to Austria franked with Victoria Centenary set 2d, 3d & 1/-, endorsed 'Via Adelaide/Perth air mail', backstamps of Sydney and Perth. (Image1)

Estimate AU$200

1934 Victoria Centenary airmail cover to Austria franked with 1934 1/- Victoria Centenary and 9d Macarthur tied by 'OUTER HARBOUR/SOUTH AUSTRALIA' datestamps, Greece transit backstamp, re-addressed on arrival. (Image1)

Estimate AU$250

1934 Macarthur 1935 (Jan 1) cover to Canada with solo franking of 2d Macarthur Dark Hills tied by 'SHIPWRIGHTS POINT/TASMANIA' datestamp. (Image1)

Estimate AU$75

1934 Macarthur 1935 (Jan 14) airmail envelope Sydney to Switzerland franked with 1/- Lyrebird and 9d Macarthur, Basel arrival backstamp. (Image1)

Estimate AU$150

1934 Macarthur 1934 (Dec) Qantas/Imperial Airways envelope Sydney to Java, solo franking of 9d Macarthur, Batavia arrival backstamp, BW Cat $500. (Image1)

Estimate AU$200

1935 Silver Jubilee 1935 (Jun 4) 2d pair, 3d single and block of 4, 2/- blocks of 4 (2) plus single (total 19/7d) and KGV 1d green on registered airmail cover (266x113mm) to South Africa, adhesives all tied by 'REGISTERED/SYDNEY NSW' datestamps, blue/white registration label tied by 'LATE/FEE' handstamp, ALEXANDRIA (Egypt) transit backstamp and 'REGISTERED/JOHANNESBURG' arrival datestamp on the face few trivial blemishes. A truly remarkable and spectacular franking. (Image1)

Estimate AU$3,000

1937 NSW Sesquicentenary 1937 (Dec 7) 9d purple x2 on cover Melbourne to London paying the ½oz airmail rate, minor blemishes. Very unusual make-up rate. (Image1)

Estimate AU$250

1949c Photographic Essay of unadopted 2½d Henry Lawson design. Not seen by us before. (Image1)

Estimate AU$100

1954 3½d Red Cross with Plate numbers 1,2,3&4 with dashes in blocks from the bottom left of the sheet, plate '2' in block of 8 the balance in blocks of 9. BW #312z,zd,zh,zl, Scarce group with plate numbers clearly visible. Cat $1,000. (35) (Image1)

Estimate AU$400

1954 3½d Red Cross Plate dot group: One dot from bottom right 3 units MH, tone spots, One dot used block from bottom left, Two dots pair from bottom left and Two dots block of 8 from bottom right, top 2 units MH, BW #312zn,zo,zp,zq, Very scarce group, some toning. Cat $1,050++. (18) (Image1)

Estimate AU$340

1960 5d NT Centenary Vertical perforations misplaced 3mm to the left block of 4, BW #378bb, all 4 units very lightly mounted, Cat $600 (Image1)

Estimate AU$200

1959-65 2/3d Wattle Flower on Yellow Paper Oblique line through right side of first 'T' of 'WATTLE' [4/9] left unit in marginal pair, BW #388f, MLH, Cat $400. (Image1)

Estimate AU$85

1963-65 Navigators 7/6d to £2 set optd 'SPECIMEN', £2 opted at lower-right, 10/- cream paper, BW #406x-409xb, fresh MUH, Cat $900. (4) (Image1)

Estimate AU$500