A coin is a piece of hard material that is standardized in weight, it is produced in large quantities in order to facilitate exchange, and primarily and above all has the mark of the authority that produces it.

Coins are usually metal or a metallic material and sometimes made of synthetic materials, usually in the shape of a disc, and most often issued by a government. Coins are used as a form of money in transactions of various kinds, from the everyday circulation coins to the storage of large numbers of bullion coins. In the present day, coins and banknotes make up the cash forms of all modern money systems. Coins made for paying bills and (general monetized use) are usually used for lower-valued units, and banknotes for the higher values; also, in most money systems, the highest value coin made for circulation is worth less than the lowest-value note. The face value of circulation coins is usually higher than the gross value of the metal used in making them, but this is not generally the case with historical circulation coins made of precious metals.

Exceptions to the rule of coin face-value being higher than content value, also occur for some "bullion coins" made of silver or gold (and, rarely, other metals, such as platinum or palladium), intended for collectors or investors in precious metals. Examples of modern gold collector/investor coins include the American Gold Eagle minted by the United States, the Canadian Gold Maple Leaf minted by Canada, and the Krugerrand, minted by South Africa. The American Gold Eagle has a face value of US$50, and the Canadian Gold Maple Leaf coins also have nominal (purely symbolic) face values (e.g., C$50 for 1 oz.); but the Krugerrand does not.

Historically, a great number of coinage metals (including alloys) and other materials have been used practically, artistically, and experimentally in the production of coins for circulation, collection, and metal investment, where bullion coins often serve as more convenient stores of assured metal quantity and purity than other bullion.

Coins have long been linked to the concept of money, as reflected by the fact that in other languages the words "coin" and "currency" are synonymous. Fictional currencies may also bear the name coin (as such, an item may be said to be worth 123 coin or 123 coins).

From Wikipedia under the GNU Free Documentation License
Sat Dec 5 08:41:49 2009

How do I clean coins that were soaked in water and got crusty?
Q. A fast-food cup leaked in my car, and the soda dried on the coins. I then put them in a cup of water to try to get the soda to dissolve, which it did for the most part. Now they're all... oxidized? I don't know if that's the right word. Anyway, I was hoping there was a simple answer that didn't involve expensive polish for collecter coins. These are just normal pocket change coins. Thanks!
Asked by Geoff - Fri Sep 14 21:53:15 2007 - - 13 Answers - 1 Comments

A. I don't think I am ever drinking Coke again!!
Answered by jade_2011 - Sat Sep 15 08:21:24 2007

Can charities use obsolete British coins? How can I send this without it costing a lot?
Q. It seems a pity to throw out a lot of these coins if a charity can benefit. Please help. Thanks
Asked by A W - Sun Jan 20 10:51:49 2008 - - 6 Answers - 0 Comments

A. Chances are a charity would not be able to appreciate the value of collectible coins. I recommend you have them valued. (Quotes are usually free). Best sell the coins for cash. Use the cash to write a cheque to the charity. Ask for a receipt. Claim for charitable donation if you like. Gold is USD800+ per oz. All metals are worth more now than a year ago Thank God. Thank You for thinking of others.
Answered by Puddy S - Sun Jan 20 11:06:32 2008

What is the best way to get gold dollar coins?
Q. I want to get some more gold dollar coins but I don't know what I should do to trade my bills in for coins. Ok, thanks guys =)
Asked by Chris D - Tue Jan 13 19:09:52 2009 - - 4 Answers - 0 Comments

A. As the others point out, go to your bank. Just beware that US Presidential Dollar coins are NOT GOLD, but golden in color !! I happen to get most of MINE as change from the train-ticket machine and the Post Office.
Answered by mariner31 - Tue Jan 13 20:13:42 2009

From Yahoo Answer Search: "Coins"
Mon Jan 4 05:47:31 2010

See also:

  • Coin Collecting FAQCoin Collecting FAQ
    telecoins.com
    Frequently asked questions about coin collecting.
  • NumisMaster.comNumisMaster.com
    numismaster.com
    Provides free portfolio management tools, detailed coin listings for over a million U.S., world, and unusual coins, as well as pricing and mintage information (by subscription). Also features Numismatic news, blogs, and a comprehensive events calendar for the U.S. and beyond.
  • Metals Used In Coins and MedalsMetals Used In Coins and Medals
    tclayton.demon.co.uk
    A list of types of metals used in coins with descriptions, atomic weights and melting points.
Custom search only Coins sites:

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Mon Dec 21 20:26:24 2009
NEW - Abilene couple designs tribute coin for veterans - Corsicana Daily Sun
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NEW - Abilene couple designs tribute coin for veterans

Corsicana Daily Sun

The Farrs have designed and developed the "Not Forgotten" coin to distribute among veterans, servicemen and women, and among friends and family who want to ...



and more »
Coin Chat Radio: 2009 Gold Eagles, Gold Market, Czech Issues - CoinNews.net (press release)
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Coin Chat Radio: 2009 Gold Eagles, Gold Market, Czech Issues

CoinNews.net (press release)

"What's In the News" with Bob Van Ryzin starts off the December 24th episode of Coin Chat Radio with details about the intense demand and availability of ...
Please sign here sir... - iAfrica.com
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Please sign here sir...

iAfrica.com

It is common to put several charms or coins in the pudding which are believed to bring prosperity in the New Year to the person who finds them.

Risky pudding: UK diners sign waiver for Christmas dessert USA Today

Bring the Figgy Pudding, But Only After You Sign The Waiver Law Professor Blogs Network (blog)

Sue it pudding Mirror.co.uk



all 6 news articles »

From Google News Search: "Coins"
Wed Dec 30 19:20:04 2009

coins 01 jpg
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Rose 4 Tomatoes 5 Coins Hot Image Site Picks

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orig flash tele jpg 25 Mar 2007 22 28 1 4M orig allauto2 jpg 25 Mar 2007 22 28 1 6M orig coins jpg 25 Mar 2007 22 28 1 7M orig allauto jpg 25 Mar 2007 22 28 1 7M

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P c g s or Numismatic Guarantee Corporation n g c certified investment grade coins All other coins will be sold as raw uncertified and priced accordingly certified p c g s or n g c coins are bought or sold worldwide all CGE Quotes Are For PCGS Premium Quality Coins Unless Otherwise Requested

From Yahoo Image Search: "Coins"
Sun Jan 3 01:27:47 2010

Gold Coins for Investment | Joes Corner In Niles
joescornerinniles.com
Gold Coins for Investment | Joes Corner In Niles

admin

ue, 05 Jan 2010 08:55:50 GM

Gold is the most valuable metal in the world. The value of gold is stable even in the hard financial crisis. Moreover, the market of gold never closes. It means.

Win Gold on Paper Money | Gold Bullion Coins
aeweal.com
Win Gold on Paper Money | Gold Bullion Coins

admin

ue, 05 Jan 2010 08:30:36 GM

Recession and the economic crisis has given birth to the great popularity of Gold. Gold reached a peak value and is one of more profitable investments. People.

Interesting video guy makes gold coins at home - CoinTalk
cointalk.com
Interesting video guy makes gold coins at home - CoinTalk

Yankee

Sun, 03 Jan 2010 11:50:04 GM

I found this video interesting! This gentleman has his own mint in his basement. He seems to make good quality bullion . coins. ! Calls himself Jeweler.

From Google Blog Search: "Coins"
Tue Jan 5 18:26:10 2010