6d Chestnut (+KGV 2d & 3d Airmail) tied to airmail cover to England by CHELTENHAM '11FE32' datestamp, endorsed "Australian & Karachi-London Airmail". Very scarce as part of a on-cover multiple franking, BW:23 - Cat. $750. (Image)

Estimate AU$200-300
Min. Bid. AU$160

Oct.1937 usage of 6d Chestnut + 6d sepia Airmail on registered airmail cover from Adelaide to Stuttgart, with Perth & Stuttgart backstamps; also, an April 1938 cover bearing a 2/- Maroon + 4d Koala + 1d Queen on registered airmail cover from Adelaide to Chemnitz, Germany. (2 items). Cat.$1100+. (Image)

Estimate AU$150-250
Min. Bid. AU$120

 9d Violet Die IIB Plate 4 Ash Imprint ('N' over 'N') Second State with "screw-hole" in Jubilee Lines, variety "Die II substitution", three units unmounted. BW: #28(4)b - Cat $650 (mounted).    (Image)

Estimate AU$300-400
Min. Bid. AU$260

5/- Grey & Yellow used in combination with 1/6 Hermes + 4d Koala on June 1938 quadruple-rate airmail cover from Melbourne to Germany; the adhesives tied by LATE FEE datestamps. (Image)

Estimate AU$250-300
Min. Bid. AU$200

10/- Grey & Pink, fine used with tidy part 'SHIP MAIL' datestamp, BW:50A - Cat. $300. (Image)

Estimate AU$100-120
Min. Bid. AU$80

£2 Grey-Black & Rose Crimson, varieties "Flaw in Bight" (Duty Plate) and "Hunch-backed Roo" (Vignette Plate) [L17], well centred, fine used with tidy registered datestamp;BW:58(D)f&(V)h - Cat. $1300+. (Image)

Estimate AU$750-1,000
Min. Bid. AU$55