This is a 1966 Australian mint uncirculated set including six coins with denominations of 1, 2, 5, 10, 20, and a rare silver 50 cents. These are the first decimal coins issued by the Australian government and are composed of bronze, copper-nickel, and silver with a fineness of 0.8. The set is ungraded and uncertified, but the KM number for these coins is 62-67. The coins are in excellent condition and have not been modified. This set is a perfect addition to any coin collection.