1997 Riverboat $5 Silver Proof CoinThe riverboat was a significant mode of transport in Australian history, particularly in the early years of settlement. Riverboats were used to transport goods and people along Australia's extensive river networks, connecting isolated communities and opening up new trade routes. They played a crucial role in the growth of agriculture and trade and helped to establish many of Australia's regional towns and cities. Weight: 35. 79 grams Purity: 92. 5%