AUSTRALIAN COMMONWEALTH, KANGAROO ISSUES, 1915 SECOND WATERMARK
Lot 286
Estimate: $3,500
6d Ultramarine, marginal block of four, lower units unmounted. Ex Kilfoyle
Lot 287
Estimate: $3,000
9d Violet 'WATERMARK INVERTED' clearly cancelled '(C)HILDERS/8 MAY 17/ (QUE)ENSLAND', BW 25a, SG 27w. Of the dozen or so postally used examples, this is one of the few known that is clearly dated. Cat AU$4000 or £1600