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Font, rust, sound, workmanship.
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There are these ways to identify the authenticity of ancient coins:
1. Distinguish the authenticity of ancient coins from the sound: ancient coins are old and copper-oxidized, and the sound of knocking is deep and dull and pure, without transliteration, and the price of the new mint will make a crisp sound when gently knocked, accompanied by transliteration;
2. Distinguish the authenticity of ancient coins in terms of smell: the authentic ancient coins have a rust color due to being buried in the ground for a long time, and they will have a pure earthy fragrance when they are unearthed, without other smells, while fake coins have a fake rust color, with a pungent glue smell, pine fragrance, lacquer smell and other strange celery smells;
3. Identification of the authenticity of ancient coins in terms of weight: the authenticity of ancient coins is exquisite, and the copper is delicate and greasy, due to the age, the internal composition changes, and the weight will be greatly reduced, while the copper used in counterfeit coins is shoddy and thicker;
4. Acid test method to test the authenticity of ancient coins: coins with serious rust, soak one end of the time with edible acid vinegar, or use diluted hydrochloric acid to check the positive part of the bureau of spring filial piety, or the two can also be used in combination to remove the money rust, find out the authenticity, acid test method to identify the authenticity of silver coins is the most applicable, but there is damage to the money body;
5. Washing method: put the tested coin into clean water, take it out after a few days, and the soil, oil, and rust attached to the coin will be removed, and the counterfeiting on the counterfeit will also be easy to find.
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Today to introduce the basic method of coin counterfeiting, the ability to distinguish the authenticity of coins is a process of experience accumulation, it is difficult to pass an article, a ** to let the ability to distinguish counterfeits be qualitatively improved, or need to usually see more and ask more to get started, the method of identifying counterfeit ancient coins on the Internet can be said to be varied, but the most surprising thing for me is the tongue licking to identify the forgery, this really does not mind trying, judging the authenticity of a coin, the common methods are to see, smell, listen.
What to see? A copper, the most widely used material in ancient coins, bronze, red copper, white copper and brass, but no matter which material most of them show the characteristics of delicate copper and high finish, and many imitations are loose copper, and there are more pores and sand holes on the surface, but now many imitations are Huai defeated and blind old copper furnace, so copper can only be used as one of the dimensions to judge authenticity.
Two fonts, font charm should be one of the core elements of authenticity identification, because of the imitation process, a large part of the imitation fonts are not up to standard, either showing weakness, ambiguity, lack of calligraphy of the kind of stroke and strength, no spirit at all, or show a rigid and rigid, angular trend, lack of calligraphy that kind of agility and naturalness.
Three pit pulp, previously shared the common buried various types of pulp in ancient coins, the imitation of this piece is mainly based on the pit, the hand-me-down pulp, the imitation of the old pit slurry is mainly used for corrosion and dyeing with various chemical agents, the rust color is mostly thin and consistent, the transition is not natural enough without a sense of hierarchy, and it is easy to fall off, most of the imitation hand-me-down pulp can not reach the kind of warm state of natural formation of pulp, it looks more consistent and rigid, and now the imitation is also chasing hot spots, like imitation cinnabar pulp, imitation house beam pulp, It's also endless.
Fourth, the ancient coins due to the long-term wear on the rope line, the perforation is naturally worn smooth and edgeless, the counterfeit of imitation lead air casting will be repaired with a file, and will be coated on the hemp rope with very fine emery, and then the imitation is worn on the hemp rope to polish, which can also make the piercing smooth and clean, but the wear degree of the genuine piercing is natural and uniform, and the artificial file grinding is not easy to grasp the weight and wear, the degree of wear is different, and there are many low imitation piercing have not been treated.
5. What to smell? Smell whether there is a smell of chemical agents, untreated copper coins basically have no peculiar smell, and most of the counterfeit products that have been treated with chemical agents have the smell of chemical agents.
6. What to listen to? The voice of the old copper coin is not as sharp and crisp as the new coin, and in the jargon, the anger has receded. Although the current level of imitation has indeed improved a lot, it is also difficult to do everything, leaving no flaws, and it should be easy to identify the friends who see it at a glance, and the rest is a certain medicinal imitation, give everyone a suggestion but if it is not a big open, look a little uncomfortable, don't be in a hurry to start, you can ask some old Tibetan friends, listen to their opinions, Not only can you save a lot of grading fees, but you can also learn more experience.
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To distinguish the authenticity of ancient coins, you can listen to the sound, the real ancient coins have a deep degree of oxidation, and the lead will make a dull and dull sound when struck, while the sound of fake ancient coins is clear and crisp. Ancient coins can also be identified by boiling water, real ancient coins will not fall off after boiling water, while fake ancient coins will fall off after boiling green rust.
At present, the pickling and grinding methods that are rumored on the Internet are serious damage to the coin base plate and pulp, and it is firmly opposed by experienced spring friends! Why can't ancient coins be cleaned with acid (including vinegar, oxalic acid, toilet cleaner, etc.)? First of all, the acid not only erodes the toning and the baseplate, but the bronze coin washes the toning and thus loses its value. >>>More
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