The appearance is the life of the coin, so we often see some old qualified coin collectors who are picky about the appearance when buying coins, and if the appearance is slightly flawed, they will also refuse to do so, however, this practice is very correct, and it should not be ambiguous in the appearance.
In the United States, the coinage phase can be divided into 70 grades by standard, and if the coin is not properly preserved, even adding a scratch or a black dot the size of a pin eye that can only be seen with a magnifying glass will cause the coin to drop by one or more grades.
However, in the world's standard coin catalog published by Klaus Publishing House in the United States, a mint of tens or even hundreds of dollars in grades is by no means unique. Maintaining the appearance of the coin is actually to preserve or even increase the value of the coin.
Although the mainland is not as cumbersome as the American standard for appearance, it can be divided into more than 10 grades, from which you can compare the coins you want to buy to determine the price. At present, the numismatic market in various media is based on the value of the whole product coin as a reference, and most of the coins sold on the market are not full product coins, so there will often be a situation where the selling price is lower than the market price, if you use this as a reference to buy a bargain, it will be a loss.
For example, a good-looking CCB circulation commemorative coin can sell for more than 4,000 yuan in the coin market, while the price of the damaged CCB coin of 2,500 yuan may not be able to sell; a second set of RMB "yuan coupons" with a full quality is worth more than 250,000 yuan, and a badly damaged and renovated "yuan coupon" only sells for 50,000 yuan.
For the majority of RMB collection investors, buying a good product of the coin variety "cover" in the palm of the hand is not panicked, want to sell when there will always be someone to want, and the difference in the value of the coin is like a hot potato, no one dares to reach out to pick up, except for a very small number of "magic hand rejuvenation" technique of the coin chamber will be very low to recover the price (these coin merchants have the ability to give it "plastic surgery", and then shoddy), the vast majority of ordinary investors will not buy.
Tibetan friends in the purchase of a variety of coins to adhere to the principle of quality first, the price can sometimes be flexible and flexible, but in the phase of the absolute can not loose, and then buy back a variety of expensive coins to be carefully stored, to regularly take out and turn over, so that you can appreciate a variety of coin collections can also check whether there are problems with the appearance, if you find problems to deal with in time, otherwise the longer the time the product will be damaged the more severely