Orientation, Medal. Mint, Australia - Canberra. Edge Type, reeded. Designer, obv. Ian Rank-Broadley rev. Stuart Devlin. Catalog prices, No catalog prices set yet. Rare features and printing errors on some Australian coins that are still in public Published: Monday, 15 June 2020 11:33 am AEST cent, one dollar and fifty cent denominations that could be worth thousands of dollars. An operator error during a 2010 production run of Australian 50 cent coins where. Subject, Australia Day 2010. Period, Queen Elizabeth II (1966 - 2021). Coin type, Commemorative coins. Ruler, Elizabeth II. Composition, Copper-Nickel.