How should I keep my coins?

Coins are kept in special plastic boxes. On the one hand, they have certain sealing and isolation functions; On the other hand, they are made of transparent materials and easy to watch. However, it should be noted that PVC-containing materials should be avoided, and PVC will precipitate plasticizer to corrode coins at room temperature. The whole roll can be put in a coin tube dedicated to coins.

In addition, if you need to watch with a coin, don't touch the surface of the coin directly with your bare hands. You can look at it with the side teeth of the coin. If possible, you'd better wear gloves or finger covers.

How to save paper money:

First of all, make sure the paper money is dry enough. Paper money is exposed to the air for a long time, and it is easy to inhale a lot of water. If you buy it, put on a plastic bag immediately, and the moisture will be trapped inside, and it will be easy to get moldy after a while.

Therefore, you must not be lazy after you get it back. The simplest drying method is: in autumn, many areas in China are relatively dry, so you can expose the banknotes in the air for a period of time to reach the standard of drying. The length of drying time depends on the air humidity at that time. The drier the environment, the shorter the time, generally below 50% humidity, just a few minutes.

You can dry paper money with an ordinary notebook computer. The specific method is: put the paper money horizontally at a distance of 2-3CM from the radiator of the notebook computer for a while, and the drying process can be completed. Note that it is best not to use a hair dryer, because the wind is too strong and the temperature is too high, which is easy to damage the paper money.

Space banknotes, like other banknotes, need to be moisture-proof and protected from direct sunlight for a long time. The easiest way is to put a protective bag (special plastic bag or paper protective bag) on each banknote after drying, or store the whole knife in a paper collection bag.

Extended data:

Coins worth collecting:

The first set: * * * There are 62 editions that can be called the most.

The first set of RMB has been issued since 1 948 65438+February 1, with 62 editions of * * * 12 denomination, including 2 yuan/kloc-0 coupons, 4 5 yuan coupons, 4 10 yuan coupons and 7 20 yuan coupons.

The second set: sub-currency issue.

The second set of RMB * * * 1 0 was issued in March, 1, 2,5, 1, 2,5, 1 yuan, 2 yuan, 3 yuan and 5 yuan, 65438. At the same time, in order to facilitate circulation, the State Council issued an order, starting from 1957 12 1, and 1 minute, 2 minutes and 5 minutes, which are equivalent to paper points.

Later, the patterns and patterns of 1 yuan banknotes and 5 yuan banknotes were adjusted and changed colors respectively. On March 25th 196 1 and April 20th 1962, black 1 yuan coupons and brown 5 yuan coupons were issued respectively, which changed the second set of RMB version from 1652.

The third set: cancel 3 yuan paper money and add 1, 2, 5 and 1 yuan coins.

China's third set of RMB was issued on April 20th, 1962. On the basis of the second set of RMB, the third set of RMB has been completely adjusted and replaced. The 3 yuan paper money in the second set of RMB has been cancelled, and four kinds of metal coins, 1, 2, 5 and 1, have been added. The third set of RMB was gradually adjusted and replaced in 18, and the second set of RMB (except 6 kinds of paper and hard currency) was recovered one after another.

The third set of 13 yuan RMB was issued one after another, including 1 RMB notes, 1 RMB notes 5 yuan, 65,438 RMB notes 2 yuan, 65,438 RMB notes 0 yuan, 65,438 RMB notes 50 cents and 65,438 RMB notes.

People's Network-Teach you the correct way to exchange and save space commemorative coins.

People's Daily Online-Ten Most Collectable RMB Inventory