Proof coinage

•  Coin collecting

  Coin collecting is the collecting or trading of coins or other forms of minted legal tender. Coins of interest to collectors often include those that circulated for only a brief time, coins with mint errors and especially beautiful or historically significant pieces. Coin collecting can be differentiated from numismatics in that the latter is the systematic study of currency. Though closely related, the two disciplines are not necessarily the same.

  

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•  Coinage metals

  Coins are made from one or more coinage metals. Many coinage metals are from Group 11 of the Periodic table, however there are some exceptions. Precious metals are used in bullion coins and some collectable coins. Coins not intended for circulation or for intrinsic value, have also been made experimentally using an even larger variety of metals, in technical and artistic experiments.

  

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•  Coin

  A coin is a piece of hard material that is standardized in weight, it is produced in large quantities in order to facilitate trade, 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.

  

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•  Moneta Nova

  During the Late Middle Ages and throughout the Early Modern period of European history, the inscription Moneta Nova, or 'New Money' appeared on many coins issued on the European continent.

  

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•  Penny

  A penny (pl. pence or pennies) is a coin or a unit of currency used in several English-speaking countries. Pennies appear to have been in use since the first use of minted coinage.

  

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  33.3%
  

  66.7%
  
•  Cupronickel

  Cupronickel or copper-nickel (sometimes incorrectly referred to as "cupernickel") is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese. Cupronickel is highly resistant to corrosion in seawater, because its electrode potential is adjusted to be neutral with regard to seawater.

  

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•  Piggy bank

  Piggy bank (sometimes penny bank or money box) is the traditional name of a coin accumulation and storage receptacle; it is most often, but not exclusively, used by children. The piggy bank is known to collectors as a "still bank" as opposed to the "mechanical banks" popular in the early 20th century. These items are also often used by corporations for promotional purposes. Their shape is most often that of a little pig.

  

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  33.3%
  

  66.7%
  
•  Nordic gold

  Nordic gold is the alloy from which the middle three denominations of euro coins, 50 cent, 20 cent, and 10 cent coins are made. It has also been in use for a number of years in other countries, most notably in the Swedish 10-krona coin . Its composition is 89% copper, 5% aluminium, 5% zinc, and 1% tin. It contains no gold — this is unlikely to cause many misleading trade descriptions since its colour and weight are quite unlike real gold.

  

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•  List of currency units

  Afghani - Afghanistan the new Afghani (AFN) is currently used in Afghanistan and has been used since 2003. Before that, the old Afghani (AFA) was used.

  

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•  Picayune

  A picayune was a Spanish coin, worth half a real. Its name derives from the French picaillon, which is itself from the Provençal picaioun, meaning "small coin. " By extension, can mean "trivial" or "of little value. " Aside from being used in Spanish territories, the picayune and other Spanish currency was used throughout colonial America. Spanish dollars were made legal tender in the United States by an act on February 9, 1793 until it was demonetized on February 21, 1857.

  

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• Coins by likeorhate
• Coins of the United States by likeorhate

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•  Real wage

  The term real wages refers to wages that have been adjusted for inflation. This term is used in contrast to nominal wages or unadjusted wages. The use of adjusted figures is used in undertaking some forms of economic analysis. For example, in order to report on the relative economic successes of two nations, real wage figures are much more useful than nominal figures. If nominal figures are used in an analysis, then statements may be incorrect.

  

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•  Carboplatin

  Carboplatin is a chemotherapy drug used against some forms of cancer (mainly ovarian carcinoma, lung, head and neck cancers). It was introduced in the late 1980s and has since gained popularity in clinical treatment due to its vastly reduced side-effects compared to its parent compound cisplatin. Cisplatin and carboplatin, as well as oxaliplatin, interact with DNA, akin to the mechanism of alkylating agents.

  

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• Dukes of Acerenza by likeorhate
•  Sir Sydney Hedley Waterlow

  

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•  Torah in Christianity

  

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