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Numismatics is the study or collection of currency, including coins, tokens, paper money and related objects. While numismatists are often characterised as students or collectors of coins, the discipline also includes the broader study of money and other payment media used to resolve debts and the exchange of goods. Early money used by people is referred to as "Odd and Curious", but the use of other goods in barter exchange is excluded, even where used as a circulating currency (e.g., cigarettes in prison). As an example, the Kyrgyz people used horses as the principal currency unit and gave small change in lambskins; the lambskins may be suitable for numismatic study, but the horses are not. Many objects have been used for centuries, such as cowry shells, precious metals, cocoa beans, large stones, and gems.

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The Octopus card is a rechargeable contactless stored value smart card used for electronic payment in online or offline systems in Hong Kong. Launched in September 1997 as a fare collection system for the city's mass transit system, the Octopus card system has grown into a widely used electronic cash system used not only for virtually all public transport in Hong Kong, but also for making payment at convenience stores, supermarkets, fast-food restaurants, on-street parking meters, car parks and many other point-of-sale applications. In addition the system is used for access control to offices, schools and apartments. It can even be used to donate money to charities.

Octopus has become one of the world's most successful electronic cash systems, with over 13 million Octopus cards in circulation and over nine million transactions per day. The operator of the Octopus system, Octopus Cards Limited, a joint venture between MTR Corporation and other transport companies in Hong Kong. Octopus's international arm, Octopus Knowledge Limited has won a contract to extend Octopus-style systems to the Netherlands.

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Uzbeki girl.jpg
Credit: Camp4joy.org, User:Jabez
Uzbek girl wearing headdress and necklace of Soviet Union coins.

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Newfoundland 2 dollar coin

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The Thailand ten-baht coin is a unit of currency of a Thai baht. Like every coin in Thailand, its obverse featured H.M. King Bhumipol Adulyadej, the Great. Its reverse featured Arun Temple seen from Chao Phraya River. The ten-baht coin is also often used as commemorative coin, like both the 50th and 60th Anniversary of Accession to the Throne of King Bhumipol Adulyadej coins.

The ten-baht coin is very similar to the two-euro coin in size, shape and weight and likewise consists of two different alloys. Vending machines that are not equipped with an up-to-date coin-checking system might therefore accept them as EUR2 coins.


CHF1000 8 front horizontal.jpg
Credit: commons:User:Schutz.
A 1000 Swiss franc note, the fourth highest non-commemorative banknote in the world.

Numismatic terminology

  • Bullion - Precious metals (platinum, gold and silver) in the form of bars, ingots or plate.
  • Error - Usually a mis-made coin not intended for circulation, but can also refer to an engraving or die-cutting error not discovered until the coins are released to circulation. This may result is two or more varieties of the coin in the same year.
  • Exonumia - The study of coin-like objects such as token coins and medals, and other items used in place of legal currency or for commemoration.
  • Fineness - Purity of precious metal content expressed in terms of one thousand parts. 90% is expressed as .900 fine.
  • Notaphily - The study of paper money or banknotes.
  • Scripophily - The study and collection of stocks and Bonds.



Numismatic News

January 1, 2008 Venezuela launched a new currency with the new year, lopping off three zeros from denominations in a bid to simplify finances and boost confidence in a money that has been losing value due to high inflation. The new currency is called bolívar fuerte or "strong bolívar". Officials also say it is part of a broader effort to contain rising prices and strengthen the economy. More...

January 1, 2008

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Today at midnight, the Cyprus and the Malta adopted the euro as their official currency; less than four years after their accession to the European Union. The single currency has replaced the Cypriot pound and the Maltese lira at a rate of one euro to 0.585274 Cypriot pound and 0.4293 to the Maltese lira. In both countries the euro was welcomed with outdoor celebrations, including a fireworks display in Malta's capital Valletta. More...

September 26, 2007

Designs for three of four themes proposed for the reverse of 2009 Lincoln cents to honor Abraham Lincoln's life were endorsed by the Citizens Coinage Advisory Committee. More...

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  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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