1966 Navigator $1 Flinders sheet A LL cnr blks of 6 (3 diff) with UR stamp 'missing LL frame' & LR stamps 'retouched upper & lower cnrs'. Fresh MNH. 2001 ACSC 463e/e(var) & 463fa/d(var) cat $375 as individual stamps, premium for the 3 positional blks. (18) (P)

Estimate AU$300

1973-74 Gemstone 8c Opal error 'black OMITTED' (value & 'opal'). VF fresh MNH, tiny mark at top, normal to compare. SG 551a cat £425. ACSC 644c cat $500. (P)

Estimate AU$150

1973-74 Marine Life 1c Shrimp horiz right marginal strip of 4 error 'yellow OMITTED' from 1st 2 stamps from right, & almost totally missing from 3rd stamp, 4th normal. F-VF MNH, tropical spots on gum. SG 545b cat £2600+. ACSC 635cb(var) cat $8000 for 2 missing yellow alone, would be $9000+ for this strip as earlier cat listing was based on strips with missing yellow only on marginal stamp. (P)

Estimate AU$1,200

1978 Aviators 18c Ulm blk of 6 (3x2) from lower pane with gutter above, variety 'misplaced vertical perfs'. VF fresh MNH. SG 661(var). Spectacular new discovery. (P)

Estimate AU$300

1978 Northern Territory Govt 18c, error perfs shifted left on right stamp of right marginal horiz strip of 3. VF fresh MNH. SG 668(var). ACSC 800bb cat $150+. (P)

Estimate AU$120

1981 Tasmanian Tiger 24c 1st printing, error missing dark green grass. VF fresh MNH. SG 788(var), ACSC 902(var) unlisted as only discovered in 2004. Normal for comparison. Only 1 sheet known with missing green on part of sheet. (P)

Estimate AU$500

2012 Farming 20c Pineapples LR cnr blk of 4, lower stamps variety with part of design at left as seen in the margin, should be blank at left as on above stamp. SG 3743 unpriced.

Estimate AU$50

2016 Adelaide 30c Emergency counter printed self-adhesive Kangaroos tied to small piece with 70c Flowers by 'Adelaide 3 Feb 2016' machine cancel. Very scarce with only tiny numbers surviving. (P)

Estimate AU$200