The gold and silver coins are superbly cast, the picture is exquisite, and the price is very expensive. Therefore, collectors are also very annoyed, how should we maintain our beloved gold and silver coins collection?
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First, we need to understand the special material characteristics of gold and silver coins. It is usually made of high-purity gold or silver or other precious metals. The material is relatively soft, and the most casting process used in the coin surface is polished mirror and frosted sandblasting. If you wipe it with your hand, or gently across the surface of the coin, you will leave a mark that is difficult to remove. Therefore, when buying gold and silver coins, try to go to a professional sales organization, such as the special dealer or retailer's store of China Gold Coin Corporation, and choose to buy the original gold and silver coins in the factory, that is, the outer plexiglass box and the sealed plastic sleeve of gold and silver coins. Moreover, if it is not a special case, try not to remove the original packaging, because once the original packaging is opened, it is easy to make the gold and silver coins directly contact with damp or harmful air, and it is corroded, which is more likely to cause corrosion such as gold erybum and silver leukoplakia. Even if there are special circumstances that need to be taken out for careful appreciation, be sure not to wipe or touch the surface directly with your hands.
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Second, if you accidentally leave fingerprints or other smudges on the surface of the coin, do not use a soft cloth or toilet paper to wipe the surface of the coin directly. Do not use the more commonly used computer or TV wipes. This will only damage the surface of the gold and silver coins, leaving an irreversible mark. If you want to eliminate fingerprints or smudges on gold and silver coins, the best way is to dip the gold and silver coins in absolute ethanol, use a new brush to gently remove fingerprints or smudges with a soft brush, then carefully dry with a soft cloth. .
Third, in the environment where gold and silver coins are placed at home, try to choose a place that is ventilated and dry. Try not to let the beloved gold and silver coins collection touch the moisture. If there are conditions, you can put more desiccant around the collection. Small-size gold and silver coins can also be stored in a special collection book or plexiglass group, which can prevent rubbing and convenient to enjoy the appreciation of coins at any time.
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