Industry WIKI
Digital assets and currencies
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Card money
Card money is a type of fiat money printed on plain cardboard or playing cards, which was used at times as currency in several colonies and countries (including Dutch Guiana, New France, and France) from the 17th century to the early 19th century. Where introduced, it was often followed by high rates of inflation.
Trading basicsMetcard
Metcard was the brand name of an integrated ticketing system used to access public transport in Melbourne, Australia. It was a universal ticket which allowed users to ride on the city's Metlink and Metropolitan Transit Authority network, consisting of suburban trains, trams, and buses, including the NightRider network. The Metcard was a credit card-sized ticket made out of cardboard an
BankingWatermark
A watermark is an identifying image or pattern in paper that appears as varying shades of light and dark when viewed by either transmitted light or reflected light. These patterns are created from variations in the thickness or density of the paper. Watermarks have historically been used on postage stamps, currency, and other official documents to discourage counterfeiting. There are two