Slang terms for money for "saucepan lid/quid". The five-pound note could be referred to as a "fiver", or its derivatives, "deep sea diver" and "sky diver". A number of post-decimal denominations which have since been discontinued had their own nicknames. The two-dollar note was known as the "sick sheep" in reference to its green colour and the merino ram that it showed. The paper (first and second series) hundred-dollar note was nicknamed the "grey ghost", or the "Bradman" in recognition of its proximity to the 99.94 batting average of cricketer Donald Bradman. In Canada, the one-dollar coin is known as the "loonie". This is
Dollar coin (United States) was the smallest denomination of gold currency ever produced by the United States federal government. When the U.S. system of coinage was originally designed there had been no plans for a gold dollar coin, but in the late 1840s, two gold rushes later, Congress was looking to expand the use of gold in the country’s currency. The gold dollar was authorized by the Act of March 3, 1849, and the Liberty Head type began circulating soon afterward. Because of the high value of gold, the gold dollar is the smallest coin in the history of U.S. coinage. The trade dollar