The Perth Mint 1oz Kookaburra and Koala Silver Coins are struck from one troy ounce of 99.99% pure silver and form part of two of Australia's most recognised bullion coin series. Each annual release features a new reverse design celebrating either the iconic kookaburra or koala, making every year unique. Manufactured by The Perth Mint, each coin displays detailed Australian wildlife artwork, together with its weight, purity, year of issue and The Perth Mint's "P" mintmark. The obverse features the current effigy of the reigning monarch and the Australian legal tender denomination. Produced to internationally recognised minting standards, both the Australian Kookaburra and Australian Koala series are known for their annually changing designs and exceptional strike quality.