2016 Changeover $2 Coin Pack1966 saw Australia embark on landmark change as it farewelled pounds, shillings and pence in favour of the much simpler decimal system. Fifty years later, the Royal Australian Mint honoured this critical moment with the superb Decimal Currency 50th Anniversary 2016 $2 Al Br Coin. A unique, one year only type, this Australian legal tender coin is essential for a complete decimal collection.