First, listen to the sound.
Distinguish by the sound of silver dollars colliding with each other. Gently press one fingertip upward at the center of the silver dollar, and tap the edge of the silver dollar with another silver dollar to make a crisp and soft sound. This is the real silver dollar.
If the voice is sharp and high, with a copper sound, it is a low-component fake silver dollar containing a lot of copper. If the voice is low and hoarse and the periphery is inconsistent, it is a fake silver dollar dug by the foreskin. Generally, the sound of fake silver dollars is mostly short and dull.
Second, distinguish colors.
There is a folk saying that "silver is white, eyes are black", which means that the more polished money is, the whiter it is, the more crystal clear it is, and the appearance is consistent. On the contrary, it is black, gray or silver, which has an impetuous feeling.
Third, look at the ornamentation.
Real money is a steel die stamped by a machine. The word lines are fresh, smooth and natural. Longlin is meticulous, and people's eyebrows, beards and double eyelids are very clear. On the contrary, the pattern is vague and uneven.
Fourthly, the edge detection teeth.
Because the real silver dollar is a mechanism version, its side teeth are detailed and symmetrical, and the rules are even; The side teeth of counterfeit money are rough and uneven, and some have traces of local file repair. As long as you are careful, it is easy to distinguish with the naked eye. What if one of the two coarse teeth of Yuan Datou's side teeth has a fine tooth? The fine teeth of the fake "Yuan Datou" are blurred.
Verb (abbreviation of verb)
The standard weight of silver dollar should be 26.8g, and the fineness is 96%-97%. After wearing a normal silver dollar in circulation, its weight should also reach 25.8 grams. Anything weighing less than 25 grams, with a purity of less than 96% or with a purity of more than 97% was not made by the government at that time, but now it is counterfeit money.
Six, acid test
Drop a drop of nitric acid on the silver dollar. If the silver dollar is found to be bubbling green or black, it is a lack of ingredients or a fake silver dollar. The copper-core silver dollar will lose its luster as long as it touches nitric acid. In the case of silver plating, the silver-plated surface layer is easy to fall off, and the falling part is easy to rust.
Seven, know the patina
In the process of circulation or storage, the surface of silver dollar will leave a special feature called patina, which has both natural beauty and historical beauty. On the contrary, counterfeit money is often baked with cigarettes or smeared with black shoe polish and black mud, which looks unnatural and smells bad and is easy to erase.
Eight, touch the surface of the coin
Real coins are compact, flat, nonporous and soft. On the contrary, there are many pores and the pore layout is rough. Under the magnifying glass, there are raised fine particles on the surface of the coin.
Extended data
Common counterfeit money are:
1, copper coin and silver coin
The shape, size and pattern are completely similar to real silver coins, but copper is the main body and the pattern is rough. If you grind it on a stone, the essence of copper will appear, with a sharp knock and a whistle.
2. Lead and silver coins
Fill the silver with lead, that is, the silver skin contains lead and silver dollars. Its pattern is the same as the normal silver dollar, but its sound is rich, stuffy, gloomy and click. When it is baked by fire, lead will flow out.
Step 3 clip up the silver coins
The outer layer is wrapped in two layers of silver skin, and the silver layer is thick, so it is generally difficult to grind out traces. This is called sandwich silver dollar, which is the most common kind of fake silver coin. It contains copper, iron, lead and other components, and its voice is short and dull, with no tone change.
Step 4 change small silver coins
The teeth of normal silver dollar are flattened and reduced, and then refined silver is obtained. Just compare it with a full-weight real silver dollar and you can tell.
5. Sand silver coins
Rough surface, blurred image, weight below 20 grams. It's a replica of sand. When it hits the ground heavily, it will break immediately, and the broken surface is light gray. The fake "Yuan Datou" seen in the market mostly belongs to this type.
Step 6 wash silver coins
Also known as bath plate, the normal silver dollar is to etch away a layer of silver with nitric acid and steal some silver. It is characterized by vague or floating white patterns and slow pronunciation. Strictly speaking, this is not a real fake silver coin, but the weight has been reduced to less than 25 grams. For example, as a collection, the appearance is incomplete and the collection value is greatly reduced.
7.private silver coins
This is a privately minted silver dollar. There are Yuan Datou coins, Sun Yat-sen's founding commemorative coins and Beiyang Yanglong coins. This kind of counterfeit money was mainly trafficked from the coin market in Taiwan Province Province, and it was cast in Hainan Island during the Republic of China, so it was also called the Joan version of silver coin.
Its * * * features high sound and poor quality, and the fineness of silver is not between 89% and 90%. (Note that some private editions of the Republic of China are not fakes. )
8. silver-plated coins
The surface is smooth, the pattern is clear and fine, and the color is realistic, just like real silver coins. The silver-plated surface is difficult to distinguish from the image and color.
Its weight is generally 20-22g. Although it is finely crafted, the proportion of metal cannot be balanced with real silver, and it can be revealed by weighing it. Although real silver coins are worn in circulation, they will not be less than 25g (the standard weight is 26.8g).
9. Revised silver coins
This kind of silver coin collector is unrecognizable to the naked eye. Whether it is beating or testing the fineness of silver coins or looking at the packaging, it is old. The method is to identify each font with a high magnification magnifying glass and carefully look for knife marks. If there is a knife mark, it will be engraved.
This method of counterfeiting is to carve or dig out the original font of real silver coins with a knife, and then paste the special silver characters, posing as handed down silver coins and making huge profits.
10, genuine silver counterfeit money
Counterfeit money made of materials with high silver content or even the same silver content as real money is generally highly imitated, and most of them are imitation rare books. This kind of counterfeit money can't be identified by identifying silver, listening to sound and weighing, but only by shape, patina, font and rust color.
1 1, Wuyuan counterfeit money
In the third year of the Republic of China, counterfeit money in Yuan Datou was made of real silver, which was highly imitated. The back was changed from one yuan to five yuan, which was about 1cm longer than the diameter of one yuan real money and weighed about 32 grams. Many coin dealers in the market claimed that there were such silver coins in the Republic of China. Here, I want to remind you that there is absolutely no Wuyuan silver coin in Yuan Datou.
References:
Baidu Encyclopedia-Yuan Datou