Australia, Postage Due, 1909, 20s dull green, perf 11, full lightly toned o.g., well centered for this tight margin issue, bright vivid color, Very Fine. SG No. D62  £6,500 ($10,520). A LOVELY EXAMPLE OF THE EXTREMELY RARE 1909 20SH POSTAGE DUE ISSUE. The 1909 2sh, 10sh and 20sh Postage Dues were issued only in Sydney and were available for only a few months before being replaced with the following bicolored series. Complete images: View gallery or Download PDF (8.6KB) $0 (Image)