Australia, Elizabeth II, Silver 1 Dollar, 2011, A 2011 Platypus Dreaming coin, struck by the Perth Mint, issued as legal tender under the Australian Currency Act 1965, Obv: bears the ian rank-broadley effigy of her majesty queen elizabeth II and the monetary denomination, Rev: a western australian indigenous artist of both yamatji and nyoongar descent, as a tribute to the platypus, the perth mint’s ‘P’ mintmark is included in the design, 31.135g, 47.60 x 27.60mm, UNC.