A coin is a small object, usually round and flat, used primarily as a medium of exchange or legal tender. They are standardized in weight, and produced in large quantities at a mint in order to facilitate trade. They are most often issued by a government. Coins often have images, numerals, or text on them. The faces of coins or medals are sometimes called the obverse and the reverse, referring to the front and back sides, respectively. The obverse of a coin is commonly called heads, because it often depicts the head of a prominent person, and the reverse is known as tails.
Coins of the United States dollar, aside from those of the earlier Continental currency were first minted in 1792. New coins have been produced annually and they make up a valuable aspect of the United States currency system. Circulating coins exist in denominations of 1¢, 5¢, 10¢, 25¢, 50¢, and $1.00. Also minted are bullion, including gold, silver and platinum, and commemorative coins. All of these are produced by the United States Mint. The coins are then sold to Federal Reserve Banks which in turn are responsible for putting coins into circulation and withdrawing them as demanded by the country's economy.
The standard circulating coinage of the United Kingdom, British Crown Dependencies and British Overseas Territories is denominated in pennies and pounds sterling, and ranges in value from one penny sterling to two pounds. Since decimalisation, on 15 February 1971, the pound has been divided into 100 (new) pence. Before decimalisation, twelve pence made a shilling, and twenty shillings made a pound.
The United States Mint is a bureau of the Department of the Treasury responsible for producing coinage for the United States to conduct its trade and commerce, as well as controlling the movement of bullion. The U.S. Mint is one of two U.S. agencies that produce money in the case of minting coinage; the other is the Bureau of Engraving and Printing, which prints paper currency. The first United States Mint was created in Philadelphia in 1792, and soon joined by other centers, whose coins were identified by their own mint marks. There are currently four active coin-producing mints: Philadelphia, Denver, San Francisco, and West Point.
The Royal Canadian Mint is the mint of Canada and a Crown corporation, operating under the Royal Canadian Mint Act. The shares of the Mint are held in trust for the Crown in right of Canada.
The British Overseas Territories Act 2002 (c.8) is an Act of the Parliament of the United Kingdom which superseded parts of the British Nationality Act 1981. It makes legal provision for the renaming of the British Dependent Territories as British Overseas Territories, and the renaming of associated citizenship.
The fineness of a precious metal object represents the weight of fine metal therein, in proportion to the total weight which includes alloying base metals and any impurities. Alloy metals are added to increase hardness and durability of coins and jewelry, alter colors, decrease the cost per weight, or avoid the cost of high-purity refinement. For example, copper is added to the precious metal silver to make a more durable alloy for use in coins, housewares and jewelry. Coin silver, which was used for making silver coins in the past, contains 90% silver and 10% copper, by mass. Sterling silver contains 92.5% silver and 7.5% of other metals, usually copper, by mass.
The Saint Helenapound is the currency of the Atlantic islands of Saint Helena and Ascension, which are constituent parts of the British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha. It is fixed at parity with sterling, and so both currencies are commonly accepted and circulated within Saint Helena. It is subdivided into 100 pence.
The Hong Kong coinage, including 10¢, 20¢, 50¢, $1, $2, $5 & $10, is issued by Hong Kong Monetary Authority on behalf of the Government of Hong Kong. From 1863 until 1992, these coins were embossed with the reigning British monarch's effigy. Since 1 January 1993, a new series depicting the bauhinia flower was gradually issued, including a new denomination of $10. Since the beginning of the coin replacement programme on 1 January 1993, over 585 million coins featuring Queen Elizabeth II have been withdrawn from circulation. However, these coins remain legal tender. The total value of coins in circulation in Hong Kong can be found in Monthly Statistical Bulletin and the Annual Report.
This overview contains the flags of dependent territories and other areas of special sovereignty.
This glossary of numismatics is a list of definitions of terms and concepts relevant to numismatics and coin collecting, as well as sub-fields and related disciplines, with concise explanations for the beginner or professional.
The Manx Noble are platinum, gold or silver bullion coins distributed by the Isle of Man and minted by private companies. While platinum coins have been minted since the early 1800s, the Noble is the first platinum coin created for investors. The coins are not minted every year, but have an erratic schedule. Nobles are legal tender but they do not have a fixed face value; instead, like the Krugerrand or Mexico's Libertad, they are legal tender to the value of their precious metal content.
Platinum coins are a form of currency. Platinum has an international currency symbol under ISO 4217 of XPT. The issues of legitimate platinum coins were initiated by Spain in Spanish-colonized America in the 18th century and continued by the Russian Empire in the 19th century. As a form of currency, these coins proved to be impractical: platinum resembles many less expensive metals, and, unlike the more malleable and ductile silver and gold, it is very difficult to work. Several commemorative coin sets have been issued starting from 1978 and became popular among coin collectors. The major platinum bullion coins include the American Platinum Eagle, the Canadian Platinum Maple Leaf, the Australian Platinum Koala, the Isle of Man Noble, the Chinese Platinum Panda, the Austrian Vienna Philharmonic and several series by the Soviet Union and later by the Russian Federation.
Bi-metallic coins are coins consisting of two (bi-) metals or alloys, generally arranged with an outer ring around a contrasting center. Common circulating examples include the €1, €2, United Kingdom £1 and £2, Canadian $2, South Africa R5, Turkish 1 lira and 50 kurus, Indian ₹10 and ₹20, Indonesian Rp1,000, Polish 2 and 5 zł, Czech 50 Kč, Hungarian 100 and 200 Ft, Bulgarian 1 and 2 lv., Hong Kong $10, Argentine $1 and $2, Brazilian R$1, Chilean $100 and $500, Colombian $500 and $1000, Peruvian S/2 and S/5, Albanian 100 Lekë, and all Mexican coins of $1 or higher denomination.
Crown gold is a 22 karat (kt) gold alloy used in the crown coin introduced in England in 1526. In this alloy, the proportion of gold is 22 parts out of 24. Crown gold is appreciably less prone to wear than the softer 23 kt gold of earlier gold sovereigns — an important point for coins intended for everyday use in circulation.
Saint Helena, Ascension and Tristan da Cunha is a British Overseas Territory located in the South Atlantic and consisting of the island of Saint Helena, Ascension Island, and the archipelago of Tristan da Cunha. Its name was Saint Helena and Dependencies until 1 September 2009, when a new constitution came into force giving the three islands equal status as three territories, with a grouping under the Crown.
The Apostolic Prefecture of Falkland Islands is a Latin Church missionary ecclesiastical jurisdiction or apostolic prefecture of the Catholic Church covering the Falkland Islands and South Georgia and the South Sandwich Islands, UK Southern Atlantic Ocean overseas possessions.
The United Kingdom possesses a number of islands in the South Atlantic Ocean and claims a section of the Antarctic continent. These territories are St. Helena with Ascension Island and Tristan da Cunha, the Falkland Islands, South Georgia and the South Sandwich Islands, and the UK's claimed Antarctic territory, called the British Antarctic Territory. The official currency in these territories is either Pound sterling or a local currency that evolved from sterling and is at a fixed one-to-one parity with sterling.
The coinage metals comprise those metallic chemical elements and alloys which have been used to mint coins. Historically, most coinage metals are from the three nonradioactive members of group 11 of the periodic table: copper, silver and gold. Copper is usually augmented with tin or other metals to form bronze. Gold, silver and bronze or copper were the principal coinage metals of the ancient world, the medieval period and into the late modern period when the diversity of coinage metals increased. While coins are primarily made from metal, some non-metallic materials have also been used.
The British Overseas Territories maintain their own entry requirements different from the visa policy of the United Kingdom. As a general rule, British citizens do not have automatic right of abode in these territories.
