At Coinworks, rare coins and banknotes have been our passion for more than forty years. Our fascination with currency has led us to fastidiously research the history and background of each example so we are able to discuss them with buyers and sellers, with authority. The rewards of rare Australian currency as an investment are significant. By definition, there is a limited supply and a combination of rarity and demand has ensured that collectable currency has increased in value up to 200 times in the last fifty years.