Australia, Official, 1915-28, £1-£2 Kangaroos, perforated "O.S.", 3rd watermark, C.T.O. town corner cancels (o.g. on reverse), strong colors, £2 with ragged perfs, a Very Fine pair, still very scarce high value official issues. SG No. O52-O53  £7,000 for used ($11,330). $0 (Image)