Coins and collection

COINS generally refers to a hard material made of (usually metal) currency. The face of the relative notes and COINS are generally lower. For general currency COINS is not (such as copper, nickel) precious metal casting, issued by the government, generally to bits, its value is usually prescribed by law. In some areas, with a variety of areas such as octopus of the popularity of electronic toll collection system, the use of COINS has less and less.

Also have a coin for the non-monetary purposes, such as the ancient Chinese to spend money, COINS, game tokens, etc. Collection of COINS to more precious metals (such as gold, silver) casting, these COINS with intrinsic value, so the price and the issuer has no big relations.

The earliest COINS found in China at present, for the late shang dynasty bronze, before the 11th century BC. The earliest COINS in the west is Lydia. Around 660 BC began COINS.

                   

So how to collection coin?

Coin collecting is an important part of the coin collecting. Because the COINS and banknotes in physics and chemistry, there are many differences, so a lot of collectors to save it was confused about what to do. A lot of refined original coin have airtight plastic sealed packaging, bright as a mirror, can be seen in the market is opened the letter, and coin mirror were gone, and fingerprints or scratches. In the United States, the appearance of the coin according to the grades of the standard is divided into 70.If improperly stored, even if only increase a scratch or an eye of a needle with a magnifying glass can see the size of the black spots, will lead to a drop COINS in more than one level. And on Klaus directory standard COINS, a grade is not individual differ hundreds or even thousands of dollars of COINS. Therefore, keep COINS appearance is make its value.

Keep COINS appearance must use the correct preservation methods. Although vacuum encapsulation can isolate the air, but make closely contact surface of coin packaging materials and COINS, could damage a coin. Is the most simple method of isolation air soaked the COINS in the anhydrous alcohol, this method preservation effect is good, but not easy to see.

In addition, the collector should not be taken directly to play naked COINS, in particular, should not touch the refined, not viable currency or high-grade COINS.COINS are hand touched, possible corrosion. It is take put COINS, apply a clean soft paper or cloth hand edge of the coin. COINS generally don't have to clean, especially can't use ordinary rubber or sold on the market of glass fibers, swabs to wipe.