Portal:Numismatics
The Numismatics Portal

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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The Achaemenid Empire issued coins from 520 BCE–450 BCE to 330 BCE. The Persian daric was the first gold coin which, along with a similar silver coin, the siglos (from Ancient Greek: σίγλος, Hebrew: שֶׁקֶל, shékel) represented the first bimetallic monetary standard. It seems that before the Persians issued their own coinage, a continuation of Lydian coinage under Persian rule is likely. Achaemenid coinage includes the official imperial issues (Darics and Sigloi), as well as coins issued by the Achaemenid provincial governors (satraps), such as those stationed in Asia Minor. (Full article...)
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Credit: Poznaniak
The Lituanian 1 litas commemorative coin was released into circulation in 2005 to promote reconstruction of the royal palace.
Did you know...

- ...that with its two-dollar coin (reverse pictured), Newfoundland was the only British colony to issue circulating gold coinage?
- ...that Mount Burgess is nicknamed the Ten Dollar Mountain because it was featured on Canadian currency?
- ...that the American Buffalo gold bullion coin was the first .9999 fine 24-carat gold coin released by the United States Mint?
- ...that the Alabama centennial half dollar was the first commemorative coin minted with the image of a living individual?
- ...that Aksumite currency was the only native coinage to be issued in Africa without direct influence by an outside culture like Roman, Greek, etc...?
Related portals
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The penny, officially the cent, is a coin in the United States representing one-hundredth of a dollar. It has been the lowest face-value physical unit of U.S. currency since the abolition of the half-cent in 1857. Introduced in 1793, it was produced for circulation until 2025 and continues to circulate.
The United States Mint's official name for the coin is "cent" and the U.S. Treasury's official name is "one cent piece". The colloquial term penny derives from the British coin of the same name, which occupies a similar place in the British system. Pennies is the plural form, not to be confused with pence, which refers to the unit of currency. (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.
WikiProjects
Numismatic topics
Money - Coins - Banknotes - Electronic money - Exchange rate - Legal tender - Clubs - Terminology
Ancient currency: Asia - Byzantium - Greece - Primitive Money - Roman - Indian coinage
Modern currency: Africa - The Americas - Asia and the Pacific - Europe - Bullion coins - Challenge coin - Commemorative coins - Token coins
Economics: Banking - Bonds - Cheques - Credit Cards - Fiat currency - Gold standard - Mints - Monetary union - Reserve currency - Stocks
Production: Coining (machining) - Designers - Die making - Mint (coin) • Coinage Metals: Aluminum - Bronze - Copper - Gold - Platinum - Silver - Tin
Subcategories
Most traded currencies
| Currency | ISO 4217 code |
Proportion of daily volume | Change (2022–2025) | |
|---|---|---|---|---|
| April 2022 | April 2025 | |||
| U.S. dollar | USD | 88.4% | 89.2% | |
| Euro | EUR | 30.6% | 28.9% | |
| Japanese yen | JPY | 16.7% | 16.8% | |
| Pound sterling | GBP | 12.9% | 10.2% | |
| Renminbi | CNY | 7.0% | 8.5% | |
| Swiss franc | CHF | 5.2% | 6.4% | |
| Australian dollar | AUD | 6.4% | 6.1% | |
| Canadian dollar | CAD | 6.2% | 5.8% | |
| Hong Kong dollar | HKD | 2.6% | 3.8% | |
| Singapore dollar | SGD | 2.4% | 2.4% | |
| Indian rupee | INR | 1.6% | 1.9% | |
| South Korean won | KRW | 1.8% | 1.8% | |
| Swedish krona | SEK | 2.2% | 1.6% | |
| Mexican peso | MXN | 1.5% | 1.6% | |
| New Zealand dollar | NZD | 1.7% | 1.5% | |
| Norwegian krone | NOK | 1.7% | 1.3% | |
| New Taiwan dollar | TWD | 1.1% | 1.2% | |
| Brazilian real | BRL | 0.9% | 0.9% | |
| South African rand | ZAR | 1.0% | 0.8% | |
| Polish złoty | PLN | 0.7% | 0.8% | |
| Danish krone | DKK | 0.7% | 0.7% | |
| Indonesian rupiah | IDR | 0.4% | 0.7% | |
| Turkish lira | TRY | 0.4% | 0.5% | |
| Thai baht | THB | 0.4% | 0.5% | |
| Israeli new shekel | ILS | 0.4% | 0.4% | |
| Hungarian forint | HUF | 0.3% | 0.4% | |
| Czech koruna | CZK | 0.4% | 0.4% | |
| Chilean peso | CLP | 0.3% | 0.3% | |
| Philippine peso | PHP | 0.2% | 0.2% | |
| Colombian peso | COP | 0.2% | 0.2% | |
| Malaysian ringgit | MYR | 0.2% | 0.2% | |
| UAE dirham | AED | 0.4% | 0.1% | |
| Saudi riyal | SAR | 0.2% | 0.1% | |
| Romanian leu | RON | 0.1% | 0.1% | |
| Peruvian sol | PEN | 0.1% | 0.1% | |
| Other currencies | 2.6% | 3.4% | ||
| Total[a] | 200.0% | 200.0% | ||
References
- ^ 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.
Web resources
- NumisWiki
- International Association of Professional Numismatists
- American Numismatic Association
- American Numismatic Society
- British Numismatic Association
- American Vecturist Association
- Challenge Coin Association
- Numismatic Museum of Athens, Greece
- The Perth Mint Australia
- Central Mint of China
- Royal Mint
- The French Mint
- United States Mint
- Bank of Russia
- Royal Canadian Mint
- Exact Change numismatic software
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Sources
- ^ 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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