Australian Silver Koala coins are produced in both 1 oz and 1 kilogram size, with the mintage of the 1 oz size capped at just 300,000 coins. This makes the Australian Silver Koala one of the most collectible bullion series. The Koala, along with the Kookaburra, Lunar Series, and Kangaroo form what has continued to be a robust line of high quality bullion products from the Perth Mint of Australia.
When early European settlers first encountered koalas in Australia, they thought the tree-climbing animals were monkeys or bears. Even though they|re still referred to by some as "koala bears", they|re actually marsupials like kangaroos and wombats.