International - Sale 375

£1 Chestnut & blue, error WMK INVERTED, plus also wmk greatly shifted so that there is margin wmk line exactly in middle of stamp, with right side of stamp showing exactly half of the 'crown / A' watermark, & the left side showing portion of marginal wmk double-lined letters 'AUS'. Superb fresh MLH, excellent centring & nice colours. SG 44aw(var) cat £4500+++, ACSC 52Ba(var) cat $6000+++. Tthe only example with such wmk combination that we have seen. Unusually nice quality & certificate can be obtained on request. (P)
Estimate A$7000