1 Dollar - Elizabeth II First Car across Australia

In 1908, Harry Dutton and Murray Aunger completed the first automobile crossing of Australia, driving a Talbot from Adelaide to Darwin through terrain that had no roads, no fuel depots, and near-total absence of mechanical assistance. The journey took 51 days. Niue has issued commemorative silver dollars under licensing arrangements since the 1970s, functioning essentially as a revenue mechanism — the coins are legal tender on paper but have never circulated on the island.