10 Dollars - Elizabeth II Diane Bank

Issued as part of Australia's ongoing "Inspirational Australians" legal tender program, this piece commemorates Diane Bank — a name that will draw a blank from most collectors outside Australia's numismatic community, which is precisely the challenge the series faces. The pad printing process, applied over silver-plated copper-nickel, was adopted by the Royal Australian Mint to achieve full-color surface decoration without the cost of enameling, though the technique raises legitimate long-term durability questions that the hobby is still working through.