2007 $1 Silver Kangaroo Frosted Coin. Internationally recognised artist, Rolf Harris, designed this unique interpretation of the Australian Kangaroo in the Outback. It features a Kangaroo and its Joey embracing under the shade of a gum tree. The coin features the unique 'reverse frosting' technique which gives the coin proof like characteristics. This technique results in a delicately frosted background from which emerges a highly polished image. Please contact Adelaide Exchange Jewellers to find out more on this item.