coin


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coin

coin, piece of metal, usually a disk of gold, silver, nickel, bronze, copper, aluminum, or a combination of such metals, stamped by authority of a government as a guarantee of its real or exchange value and used as money. Coinage was probably invented independently in Lydia or in the Aegean Islands and in China before 700 B.C. The earliest known example is an electrum coin (c.700 B.C.) of Lydia. The first U.S. mint was established in 1792. Mottoes used on many U.S. coins are “E Pluribus Unum” (1795) and “In God We Trust” (1864).

Early coins were die-struck by hand and showed many individual variations. Standardized coins date from the use of a mill and screw machine (invented c.1561). Coins are usually stamped from rolled metal blanks, then milled. The final product bears a design impressed upon it between the upper and lower dies of a coining press. Milled or lettered edges have been used since the 17th cent. to discourage the removal of slivers of metal, especially from gold or silver coins.

No gold coins have circulated in the United States since 1934, when the domestic gold standard was abandoned. Until 1965, silver was used in the minting of dimes and quarters, but by the 1980s silver had disappeared from American coinage altogether. The cost of minting a penny has led a number of nations, including Australia (1964), New Zealand (1989), and Canada (2013) to end the circulation of that coin. In the mid-1990s, the European Union developed a common currency for its members. The new currency, called the euro, was inaugurated in 1999; coins and notes went into circulation in 2002, replacing the currencies of most EU members (see European Monetary System). Canada introduced the first colored coin for circulation in 2004; it was a quarter featuring a poppy.

See also numismatics.

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coin, quoin

1.The corner of a building.
2. The stones or bricks which form the corner.
3. A wedge.

quoin, coign, coin

stone quoins set in brickwork
In masonry, a hard stone or brick used, with similar ones, to reinforce an external corner or edge of a wall or the like; often distinguished decoratively from adjacent masonry; may be imitated in non-load-bearing materials. Occasionally imitated, for decorative purposes, by wood that has been finished to look like masonry.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
"The cost of production is the same as for higher denomination coins, meaning it is costing more to make and distribute the coin than it is worth.
Menander is also famous for his coins, which are found in large numbers in various parts of northern and western India.
"So, the next time (you go to a) grocery, bring your coins," he said, adding that this endeavor should improve the BSP's coin recirculation program.
Stefanik was a significant Slovak personality and this is why not only collectors but also the rest of the public are interested in having such a coin, he added.Ask for a coin at the NBS The designers of the silver coin are Maria Poldaufova and academic sculptor Ivan ehak.
The Bank of Taiwan has today announced on its website today that the first batch of Tokyo 2020 Olympic commemorative coins produced by the Japan Mint are now available for a pre-order lottery.
| Commonwealth Games PS2: The rarest amount the two-toned pocket change is Commonwealth Games set, and in particular the Northern Ireland coin.
LAHORE -- Special gold and silver coins, commemorating the 550th birthday of Guru Nanak Deviji, have been prepared by the Shiromani Gurdwara Parbandhak Committee (SGPC), Express News reported.
For a punch-marked coin, a blank coin and one or more punches are required.
THERE is evidence that coins and currency have been collected from as early as medieval times.
It goes on to say the edging of the coin has the words 'something will turn up'.