Australia, George V, unofficial square flan "pattern Crowns or Five Shillings" (60), dated 1920, struck to a brilliant proof finish, struck in .925 silver (20), copper (20), golden alloy (20) (a metal akin to goloid used in the manufacture of 19th Century US pattern coins), crowned and draped bust left, by Donald R Golder after Mackennal, GEORGIVS V D.G. BRITT:OMN:REX, rev. struck en medaille, large 5, kookaburra flying right in front, date either side, AUSTRALIA above, edge plain, diameter 35mm., brilliant as struck (60)