How to identify the appraisal of the true and false silver dollar technology silver dollar artifact tutorial

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  1. Do not do the "unjust head"

    because the "Yuan Datou" is gradually recognized by the collection market, so many counterfeiters are forged or imitated "Yuan Datou" for pursuing benefits. Be careful to become a "unjust head" for "Yuan Datou". Yao Shuomin, the former deputy director of the China Coin Museum and deputy secretary -general of the China Coin Society, provided us with some techniques to identify the authenticity of "Yuan Datou":

    Two silver coins, hold the center of one silver coin with both hands and slowly move closer. When the two silver coins are over a quarter of the position, the two silver coins gently gently bandage each other's edges. The sound of the sound was crispy, and the sound of pseudo coins sounded wood.

    The second method is "blowing", gently pinch the center of the silver dollar with your index finger and thumb, blow the vertical edge of the silver dollar, and quickly put it on the ears to listen. The silver coin tail sound is long and clear, and other metals or non -sterling silver will not have such tailing. For example, the common leading silver coins in the market are almost no sound, because the lead is heavier and soft, and it is not easy to shake pronunciation. Nowadays, most of the fakes borrow computer versions and impersonate silver with alloy materials. The color and text can be chaotic, but because they are not silver, their pronunciation is sharp.

    The third method is "called". The real currency is generally heavy. After circulation loss, it is also about 26 grams. Pseudo -coins are generally not heavy, or if they increase thickening and cause overweight, and the color is dark.

    The collector Wang Jianzhong, who is keen on the collection of silver coins, also told reporters that he appraised the authenticity of the silver coin: wipe the silver coin several times on a tasting stone, until the Taoist silver white wipe marks appeared, and then wiped the wipe. Drip in the marks and nitric acid. At this time, if it is a true coin, the mixed liquid on the scratch is milky white, and the pseudo coins are colorless and transparent. If the silver coins are insufficient, the mixed liquid of hydrochloric acid and nitric acid also appears milky white, but it is not rich enough. The less silver content, the lower its richness.

    silver circle, also known as "silver dollar", was originally entered from abroad. Because of its shape, it is easy to use and is generally welcomed. In the early 18th century, the people began to imitate, and the localities were involved in the unified official cast when they saw the favorable map. In the second year of Xuantong (1910), the currency system was promulgated in the Qing Dynasty, and the silver dollar was established as a national currency, which stopped the free casting of various places. Currency circulation system. The silver dollar is favored by the public and collectors in its beautiful and generous casting form and unique precious metal currency shape. However, the current market fakes are full of dwelling, mainly manifested as two categories: one is the so -called "mechanism version of the silver coins" with low silver content or even zero, and the other is the so -called "pure pure silver content" pure silver content "pure silver content" pure silver content Silver high -essence imitation of silver coins. " With the continuous improvement of casting methods and the use of computer scanning technology, some have reached a real point with falseness. In the collection practice, the author learns to learn the experience of others and his own lessons, and summarizes several false methods, and teaches fellows and experts.
    1. Listening sound quality. The silver dollar with a silver content of about 90%is low and soft after the impact; the fakes are either crispy and harsh or dull, and the common feature is the short sound. When tapping the contrast, the less the two fingers are in the contact surface of the currency surface, the better the effect of the natural shock. It is said that some silver names and money house owners lying on their chairs closed their eyes and told the guy to hit the silver dollar one by one to the edge of the large water tank, listening to its sound to distinguish the authenticity.

    . The weight and thickness and diameter of the weighing weight. Both of these identification methods need to use weighing tools such as balance, scales, and cashmere calories. Silver dollars will be worn in long -term circulation. Generally speaking, the theoretical weight will not be achieved, but it is not "short -short". If the two -point version of Ku Ping's seven money is below 26 grams, there will be questions. The author has bought a pair of Kuoping's seven -dollar Hubei Province to build Guangxu ingot and Xuantong ingot, and the weight is 25 grams. The results of the appraisal have confirmed that the question is right. The standard flat code of the silver coin is: Ku Ping one or two = 37.31 grams, Ku Ping seven money two points = 26.81 grams, Kuping three dollars and six points = 13.41 grams, Kuping four cents of four cents = 5.37 grams, Ku Ping seven points two two points, two points two two = 2.69 grams, Ku Ping three -pointers and six cents = 1.34 grams. The weight, thickness, and diameter of the silver dollar allows errors, but if two extremes occur, there are problems in ten or nine.

    . The side teeth of the silver dollar mechanism are delicate and well -proportioned. The border is one -sided. The side teeth of the pseudo -coins are rough and uneven, and some are also traces of local repair. As long as you are careful, the naked eye is easier to distinguish. Some foreign silver dollars that have been circulating in China in my country, such as "France's Hercules", and the sidelines are the same as a foreign language alphabet. Therefore, they must be familiar with and master the shape of the edge of all currencies.

    . See the color. Silver and non -silver metals can be different from its surface color. The luster of the silver is naturally pleasing to the eye, and the silver light is shining. Generally, it is difficult to achieve this with cheap metals replaced. The surface of the silver dollar with a long time of time will generate the so -called "packet" of fresh ink ink -colored, but not as heavy as the ancient coins. The structure of silver chemical molecular is very stable and does not change color. In addition, the silver -plated fake can also be identified by wiping. Wipe it repeatedly with sandy rubber to peel off the camouflage coat.

    . Under the sun or light, look at the silver dollar coin surface and the eyes to observe whether there is no unevenness in the bottom of the coin surface. The casting equipment used by counterfeiters is difficult to flatten the bottom layer of the currency surface. Pay special attention to the connection parts of the text pattern and the bottom layer of the currency surface.

    6. Damage. After a long circulation of silver dollars, there will always be different degrees of wear and scratches. Naturally generators have no regularity to follow. Old fakes reveal the regular wear and rubbing of artificial behavior and machine behavior. Scratches. Some people say that the oldest is the oldest to make the old coin mold, that is, the wear surface, scratch scratches and potholes are made on the mold. The method of dealing with is to hold multiple silver dollars in the same kind. After a detailed inspection under a low magnification, "Li Gui" will be revealed.

    7. Dialogue. Prepare several types of printed silver dollars as much as possible at hand, carefully compare the real objects with it, look at the frame position of the text pattern, look at the stroke processing of text and the fine last sections of the pattern, to find flaws.

    The people who collect silver dollars will have their own identification methods, which in common.

    At present, the collection of antiques in various coins has become a trend. As far as the silver coins of the Qing Dynasty and the Republic of China are concerned, it is more than hundreds of thousands of dollars of treasures, down to a few dollars of silver, imitation fake coins, and fake coins that are imitated. Everything is omnipotent, and the materials used are different, which is invincible. The differences between real silver coins and several fake silver coins are listed below for reference.

    The silver coin is translucent, soft, ductantly, the sound is crispy and pleasant when hitting, the layout is smooth, the edge is well -proportioned, the graphic is natural and generous, and there are traces of circulation wear. The silver coins stored in the home have hard and fine ancient blacks, and those buried in the ground will have some irregular hard green rust. The fake black and green rust boil with boiling water will fade, and it is easy to distinguish.

    The late 1970s, and the manganese nickel -alloy fake silver coins casting manganese nickel alloy in Fujian and Hunan mountainous areas are almost across the country. Slightly easy to turn black, but it is not black on the lime wall. It is the only fake silver coin that will break. By the early 1980s, the counterfeit currency technology made of copper nickel alloys has made progress. There are two kinds of vague and three -dimensional sense of graphic and text. The old color is slurry, the sound is sharp, and the surface of the surface is pale yellow. These two types of counterfeit coins have basically withdrawn from the market, but some county stalls still sell them as real silver coins.

    The third type of fake silver coins was born 10 years ago. The material is nickel -zinc alloy, black and bright color, lead black light, and the black line can be repeatedly drawn on the lime wall. Slocked than copper nickel alloys, and the workmanship is often more realistic. Although the teeth are well -proportioned but harder, you can see some traces of sandy eyes, spot marks and knife processing. At present, this currency can be seen in the provincial coin stall.

    Recently, there is another kind of fake nickel -cadmium alloy coin on the market. Except for a little sand eye, the layout is smooth, the widow white is slightly shiny, the tips, hard quality, slightly light, three -dimensional feelings Too strong, the graphic owes the charm, and there are scarred marks.

    The pseudo-coins suppressed by real silver are the most difficult to identify. In recent years, it is produced in Guangdong and Hunan. It has excellent silver, white color, and basically the same weight. It is about 26-27 grams. There are vague places while teeth, uniform but unnatural side of the teeth, and the graphic and text is relatively clear, but it is also inevitable to observe with a magnifying glass. Although the patterns and text are more realistic, the layout of the blank space is not smooth. And old -fashioned paste.

    . Another kind of ordinary silver coins that change words and add words often make some veterans forget it for a while, that is, the signature version of the ordinary Yuan coin plus British text; The word "Suwei" "three words; Sun statue commemorating the six -pointed star transformation pentagram, English and digital error versions. In fact, the two versions of the above silver coins have different graphic differences. The restructuring method is to shovel the excess first, and then welded with a bit of silver to read. The handwriting is slightly owed, with knife marks, and it will destroy the surrounding layout. After washing, it is easier to find the knife marks.

    The counterfeit currency in the Qing Dynasty and the Republic of China was roughly divided into three types: First, the silvermaker was empty, such as Cixi and other commemorative coins. Second, the pseudo -coins produced by the coin workers in the late Qing Dynasty, and a few of them were cast after the original models. As for re -carving the model to suppress the coins, although they were also cast by sterling silver, the situation was two -coded. After long -term circulation, this currency has worn traces and old -color packets. From the materials and the old aspects, it is unspeakable. It is easy to pass through the level. The third is the common silver -plated copper dollars in the people during the Republic of China. The common old merchants in movies pinched the silver dollars with their fingertips and placed it on their mouths. The silver has faded, revealing the basic sophisticated brass and red copper coins of the cast workers. They bump and wear more seriously. They often make people mistakenly believe that it is a few silver -sized copper coins.

    The main features of several common fake silver coins are introduced as follows:
    copper silver coins: its form, size, and pattern are completely similar to real silver coins, but it is copper as the main body. The pattern is rough, grinding on the stone, that is, the essence of copper, the sound of the knocking out is bright and whistle.
    The lead version of silver coins: List charging silver, which is a silver dollar with lead quality in the silver skin. Its pattern is no different from normal silver dollars, but the sound is thicker, dull, gloomy and tone, roasted with fire, and lead flows out.
    The silver coin: Its outer layer is wrapped in two layers of silver skin, and the silver layer is thicker. Generally, it is not easy to grind traces. This is the most common type of fake silver coins. There are many ingredients such as copper, iron, and lead in the inside.
    The small silver coins: Strictly speaking, this one is not a fake silver coin, but the weight is reduced. This silver coin is flattened and small, and then the silver crushed silver is obtained. Generally, you can judge as long as you compare a heavy silver yuan.
    Sand version of silver coins: This silver coin has rough surfaces, the image is blurred, and the weight is below 20 grams. It is a sandwiched version, smashing it on the ground, and the broken gray surface is light gray. Most of the fake "Yuan Datou" silver dollars seen in the market belong to this type.
    This silver coins: also known as the bath version, which is to remove the normal silver dollars with nitric acid to steal part of the silver quality. This is not a real counterfeit silver coin, but the weight has decreased, which is less than 25 grams. For example, as a collection, its appearance is incomplete, and the collection value will be deducted.
    private version of silver coins: It is a privately cast silver dollar. Yuan Datou Coins, Sun Yat -sen's founding commemorative coins, and Beiyanglong coins were all available. This pseudo -money was mainly sold from the coin market in Taiwan. During the Republic of China, it was cast in Hainan Island, so it was also called Qiong's silver coin. Its common feature is that the sound is high, the quality is inferior, and the color of the silver is less than 80 %.
    The silver -plated silver coins: smooth surface, clear pattern, fine, and realistic, which is exactly the same as the real silver coin. The surface is silver -plated, and it is difficult to identify from the image and color. Its weight is generally 20-- 22 grams. Although the fine work is made, the proportion of the metal cannot be balanced with the true silver, so as long as the weight is called, it can be revealed. Although the real silver coins are worn during circulation, it will not be less than 25 grams (the standard weight is 26.6 grams).
    This Silver coins: This kind of silver coin is unable to identify with the naked eye, regardless of the sound of knocking or testing the silver coins, or the packaging is the old system. The only way is to rely on the identification of a high magnification amplification mirror, and look at the seams of each font. Whether there is a trace of knife. If there is a trace of the knife, it is modified. This method of pseudo is to engrave the original font of the real silver coin with a knife or dig, and then paste the special silver characters to pretend to be handed down silver coins to make huge profits.

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