Portal:Numismatics

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The Numismatics Portal

Electrum coin from Ephesus, 520-500 BCE. Obverse: Forepart of stag. Reverse: Square incuse punch

Numismatics is the study or collection of currency, including coins, tokens, paper money, medals, and related objects. Experts of this study, known as numismatists, are often characterized as students or collectors of coins, but the discipline also includes the broader study of money and other means of payment used to resolve debts and exchange goods.

The earliest forms of money used by people are categorised by collectors 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 or instant noodles 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.[dubious discuss] Many objects have been used for centuries, such as cowry shells, precious metals, cocoa beans, large stones, and gems. (Full article...)

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A one-dollar bill, the most common Federal Reserve Note, with a portrait of George Washington

Federal Reserve Notes are the currently issued banknotes of the United States dollar. The United States Bureau of Engraving and Printing, within the Department of the Treasury, produces the notes under the authority of the Federal Reserve Act of 1913 and issues them to the Federal Reserve Banks at the discretion of the Board of Governors of the Federal Reserve System. The Reserve Banks then circulate the notes to their member banks, at which point they become liabilities of the Reserve Banks and obligations of the United States.

Federal Reserve Notes are legal tender, with the words "this note is legal tender for all debts, public and private" printed on each note. The notes are backed by financial assets that the Federal Reserve Banks pledge as collateral, which are mainly Treasury securities and mortgage agency securities that they purchase on the open market by fiat payment. (Full article...)

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Medallion commemorating the blockade of Gibraltar, 1783, and the loss of the HMS Royal George, 1782.

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Newfoundland 2 dollar coin
Reverse, Newfounland two dollars

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The British decimal fifty pence coin (often shortened to 50p in writing and speech) is a denomination of sterling coinage worth 12 of one pound. Its obverse has featured the profile of the current British monarch since the coin's introduction in 1969. As of November 2024, six different royal portraits have been used.

As of March 2013 there were an estimated 920 million 50p coins in circulation. The coin has proved popular with coin collectors, leading to numerous differing designs for both commemorative and circulating coins. (Full article...)

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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.

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Numismatic topics



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Central banks  Currencies  Circulating currencies  Historical currencies  US community currencies  Canadian community currencies  Mints  Motifs on banknotes  Most expensive coins

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Most traded currencies

More information Currency, ISO 4217 code ...
Most traded currencies by value
Currency distribution of global foreign exchange market turnover[1]
Currency ISO 4217
code
Proportion of daily volume Change
(2022–2025)
April 2022 April 2025
U.S. dollarUSD88.4%89.2%Increase 0.8pp
EuroEUR30.6%28.9%Decrease 1.7pp
Japanese yenJPY16.7%16.8%Increase 0.1pp
Pound sterlingGBP12.9%10.2%Decrease 2.7pp
RenminbiCNY7.0%8.5%Increase 1.5pp
Swiss francCHF5.2%6.4%Increase 1.2pp
Australian dollarAUD6.4%6.1%Decrease 0.3pp
Canadian dollarCAD6.2%5.8%Decrease 0.4pp
Hong Kong dollarHKD2.6%3.8%Increase 1.2pp
Singapore dollarSGD2.4%2.4%Steady
Indian rupeeINR1.6%1.9%Increase 0.3pp
South Korean wonKRW1.8%1.8%Steady
Swedish kronaSEK2.2%1.6%Decrease 0.6pp
Mexican pesoMXN1.5%1.6%Increase 0.1pp
New Zealand dollarNZD1.7%1.5%Decrease 0.2pp
Norwegian kroneNOK1.7%1.3%Decrease 0.4pp
New Taiwan dollarTWD1.1%1.2%Increase 0.1pp
Brazilian realBRL0.9%0.9%Steady
South African randZAR1.0%0.8%Decrease 0.2pp
Polish złotyPLN0.7%0.8%Increase 0.1pp
Danish kroneDKK0.7%0.7%Steady
Indonesian rupiahIDR0.4%0.7%Increase 0.3pp
Turkish liraTRY0.4%0.5%Increase 0.1pp
Thai bahtTHB0.4%0.5%Increase 0.1pp
Israeli new shekelILS0.4%0.4%Steady
Hungarian forintHUF0.3%0.4%Increase 0.1pp
Czech korunaCZK0.4%0.4%Steady
Chilean pesoCLP0.3%0.3%Steady
Philippine pesoPHP0.2%0.2%Steady
Colombian pesoCOP0.2%0.2%Steady
Malaysian ringgitMYR0.2%0.2%Steady
UAE dirhamAED0.4%0.1%Decrease 0.3pp
Saudi riyalSAR0.2%0.1%Decrease 0.1pp
Romanian leuRON0.1%0.1%Steady
Peruvian solPEN0.1%0.1%Steady
Other currencies2.6%3.4%Increase 0.8pp
Total[a]200.0%200.0%
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References

  1. Triennial Central Bank Survey Foreign exchange turnover in April 2025 (PDF) (Report). Bank for International Settlements. 30 September 2025. p. 14. Archived (PDF) from the original on 2025-10-12.

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      1. The total sum is 200% because each currency trade is counted twice: once for the currency being bought and once for the currency being sold. The percentages above represent the proportion of all trades involving a given currency, regardless of which side of the transaction it is on.
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