What is the mother coin?
It is particularly price mentioning that, additionally, to the difficult method and high price of casting faux cash with lost wax technique, it still must open the mildew, that is, create the master mildew for wax filling (such as plaster mold), that is inescapable. The engraving of the inscription of the cash, that the new faux cash is usually troublesome to realize the primitive charm of the Chinese characters within the writing, thus some will solely use fashionable copybooks and normal scripts because of the face.
Coins are a typical kind of currency before banknotes. within the era of the common currency, mother coins became a very important coinage tool.
In short, it's the mildew of the coin.
Characteristics of the mother coin
Use copper blocks or tin or lead blocks to directly engrave cash molds, use ancestral cash as mildew once casting cash, and recast mother cash. The mother cash is distributed to varied places, and also the mother cash is employed to form fan coins.
1. The engraving line of the mother coin
The engraving of the mother coin is extremely subtle, and currently, the engraving mothers seen are all made from golden copper, which could be a copper material of fine quality. the cash writing of the bronze carving mother is extremely exquisite, and the words are also deep. There's no trace of the knife in the engraved mother's cash, and it's slightly larger and heavier than the current cash of an equivalent edition.
After the engraved mother coin is formed into cash mildew, it's quarantined. The craftsman casts the liquefied copper on the cash mildew. once the coin cools, the mildew is opened, and also the coin is taken out and polished swimmingly.
2. The feeling of the mother coin
During the Song, Yuan, Ming, and Manchu dynasty dynasties, the event of science technology, and mining technology drove the event of the coin trade. Brass coinage became common within the Ming and Manchu dynasty Dynasties. Brass could be a copper-zinc alloy. within the past, to work out the copper content of a coin, the coin was thrown on the bottom, and its quality was judged by the sound; a copper coin with a prime quality was thrown on the bottom with a golden sound. Additionally, to brass, there are copper-nickel coins. this is often thanks to the large proportion of tin in copper-tin alloys. There's additionally a copper-nickel coin that's nickel-copper.
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3. the characteristics of the look of the mother coin
The size of the engraved mother coin is larger than the mother coin and also the current cash, and also the mother coin is slightly larger than the current cash, and also the copper is additionally higher. It's simply that the mother's cash is forged from the ancestor's cash, that the definition of the outer reaches and also the mouth of the cash don't seem to be as deep because the mother's engraved.
In addition to copper, the mother cash is additionally made from iron. The iron mother coin made from iron material is larger and heavier than the copper of an equivalent grade.
4. The mother coin isn't a Tiefan copper coin
Ancient coin enthusiasts ought to separate the iron mother and also the iron fan copper coins. The iron mother coin is the mother coin made of the factory of the iron coin, so the mother coin is forged into circulation cash. It's really solely completely different from the copper coin. . For Tiefan copper coins, liquefied copper is injected before an outsized variety of copper forged iron coins envision the impact of copper mildew. Therefore, these coins are referred to as trial castings, which are precisely the same within the form of iron coins. There's little circulation of this type of cash.
Whether it's to form a coin or a model coin, it's a handicraft production technique, which ends up within the uneven quality of the coin and also the high price of casting.
The copper coins of the past dynasties in China typically have errors in the kind and flow of copper, which create the coins irregular and exquisite. They're also terribly different in weight and fineness. the burden and fineness of the coins created within the same chamber doesn't seem to be essentially equivalent. On top of is even tougher to tell them apart. a significant revolution within the history of Chinese coinage was the adoption of machine coinage within Ch'ing. The new copper coinage was showing neatness and delicately created, that was fashionable to the folks, {and the|and therefore thinned additionally the} government also benefited greatly.
The number of coins within Ch'ing and also the complexity of versions so much exceeded those of previous dynasties. The engraved mother coins of the Ch'ing ar typically seen as "Qianlong Tongbao", "Jiaqing Tongbao", "Daoguang Tongbao", "Tongzhi Tongbao" then on. this type of "Xianfeng Yuanbao" of Baoquan Bureau in Ch'ing could be a rare issue because the mother of 5 hundred carvings
In recent years, the enthusiasm of overseas, Hong Kong, and Taiwan coin collectors for modern Chinese carving mothers, mother coins, and sample coins has remained high. Domestic collectors are not far behind. Some rare varieties have returned from abroad to China, making modern sample coins and mother coins. And the price of the mother coin rose against the market.
Counterfeit technology for mother coin
Historically, any private casting or imitation has often been saddened by the "book," including contemporary counterfeiting.
Based on this, the most important feature of the mother money is that the strokes of the money text must be made thinner in order to leave the necessary spacing between the strokes. The purpose is to reduce the sticking of the text strokes when the money is cast.
This is especially necessary due to the sand mold. For example, in some historically bonded money, the quality of the mother money is not high enough, or the quality of the sand is not high enough, one of them;
Second, we know that the casting body of the mother coin is usually thicker than the trade coin, the purpose is to make it easier to hold and suppress the model, so as to ensure sufficient and appropriate "casting cavity" space, that is, to ensure the thickness and weight of the coin. Meet the nominal. Regarding the "hand-held stamper", we can see from the money tree that the money is never arranged in the same direction on the tree, but random. This is a random phenomenon that inevitably occurs in manual stamping because there is no need to arrange several pieces in a neat direction on the money tree;
Third, we also know that the diameter of the mother coin is usually slightly larger than that of the child coin. This way, on the one hand, it is easy to mold, and on the other hand, it can ensure that the size and weight of the cast coin copper liquid conform to the regulations (the basic spring knowledge tells us , If the bank money is used to recast the fake money, the result is that the diameter of the fake money must be smaller than the bank money used as the mother, and it may be even smaller if it needs to be filed.);
Fourth, the money writing of the mother money is more bulging, which can make the stroke space of the casting cavity more sufficient, and ensure that the money of the mother money will not be flat or messed up.
Unique characteristics of the mother coin
Therefore, it is wide, while requiring a certain thickness and a slightly larger diameter. Only in this way can we make money that is compliant and qualified. It is not difficult to see from this that if you use one piece of the coin to recast "grandchildren's money (or fake money)", the accuracy of the writing has already passed through a casting loss, and its thickness is insufficient, and its diameter is solidifying. It will shrink later, so the quality, appearance, size, and weight of the "grandchildren money" it casts will never reach the exact same level of "one-to-one".
Of course, we know that even the real mother's money is used to make the child money. It is also impossible to get a "one-on-one" result with the mother's money. This is due to the basic principle of casting. More intuitively, you can refer to a lot of clear money, especially Xianfeng money (because Xianfeng money remains most of the mother's money).
Obviously, in my humble opinion, it is impossible to achieve "one-to-one" with a so-called genuine old coin (a genuine sub-money made from the mother's coin), and it does not conform to the principle of casting.
If the real son's money can be used to cast a compliant grandson's money one by one, then what do you need the mother's money for? Furthermore, the theory of "mother money" has always been wrong. Of course, the precious springs that existed in the world by non-Republic of China collectors are more precious than the previous springs. It can be said that they are fake because they are all "uses". Real money is cast out one by one"!
So, is there still a treasure of true treasures in the world (or the folks)? Will there be Zhenzhen’s discoveries after the Republic of China? Think about it, this can't help but say that it is ridiculous. In other words, the so-called "using sub-money to cast one-to-one identical grandson money" is a false proposition! And this proposition is hidden by some people as an attack on others, or deny its true ax weapon, in order to achieve the purpose of deceiving the world and satisfying certain private thoughts.
Of course, there is such a point of view that the so-called "one-to-one fake grandchildren money" can be realized because of the "lost wax method".
However, this is also untenable. We know that bronzes cast by the lost wax method appeared in the Shang Dynasty and have a long history. The biggest feature of its casters is exquisiteness, some are called transparent and exquisite, but the craftsmanship is complicated and the production cost is relatively high. Therefore, in history, all generations of official furnaces did not use the lost wax method for casting currency, but only a very small amount of special-purpose money, and this method was used for small castings and high requirements.
The coins cast by the lost wax method have a prominent feature, that is, they are smooth, and it is difficult to produce copper thorns and depressions. In a word, the coins cast by the lost wax method have a refined appearance and a smooth surface. It's like a punching machine. It can be said that there is a very obvious difference in the casting phase between it and the objects cast by the clay fan or the sand fan.
Guquan Discrimination
Therefore, in Guquan's theory of discerning falsehoods, it is said that the true and false castings can be distinguished based on casting principles and methods. Some contemporary so-called town treasury coins of various reigns in the Qing Dynasty, as well as some of the huge thin plate coins made in the Song, Ming, and Qing Dynasties in Henan, have the typical characteristics of lost wax casting. Distortion of photographs and books).
Based on this, many people in the spring world also have the so-called "authentic and bad-looking" concept. One of the reasons is that things that are too refined indicate that they are smooth and do not conform to the level of casting technology at the time (of course, this view is also biased). In short, the lost wax method is only a precision casting technique, it can make the casting get a more refined casting result, but it cannot make the biological "child" and "mother" exactly one-to-one. Not bad.
Liaojin mother money
In particular, it is worth mentioning that, in addition to the complicated process and high cost of casting fake money with the lost wax method, it still needs to open the mold, that is, make the master mold for wax filling (such as plaster mold), which is unavoidable. The engraving of the meaning of the money book, so usually the new fake money, the script is often difficult to achieve the primitive charm of the Chinese characters, so some can only use modern copybooks and standard scripts as the typeface, and some are left by the molder himself. In writing, this kind of "fake" fake money is made in the form of lost wax, although it is refined, the writing often fails to pass the test. The thickness and diameter are completely contrived, just like the ancient money writing. Hard to get, one of them;
Second, if real money (non-parent money) is used as the mother of mold opening, when making the gypsum wax cavity mold (the first process of mold opening, used for pouring the wax mold), the thickness of the real money is insufficient. It is extremely difficult to form an effective wax cavity space, it is difficult to grasp the proper bulging of the mouth, and the strokes of the money will inevitably appear out of shape. After the wax-filled plaster is molded, the wax mold must be repaired. This is a little careless, inevitable It causes distortion of the strokes of the original financial documents. This is the practice of plaster. Even if it is made by the lost wax method of modern jewelry, the plastic mold is first opened (the plastic mold can be used multiple times, and there are also plaster molds). After the mold is opened, the mold must be repaired. However, the process of pressing the rubber mold is complicated, and the charm of real money is extremely difficult to maintain. And so on, I won’t go into details here.
Mother Money in Tang and Five Dynasties
In a word, the lost wax method has a high production cost and a complicated process. It requires a lot of people who use this method to counterfeit. If you use real money to make it one-on-one, it is more difficult and costly to make a small flat and double the money. In reality, some very exquisite handicrafts are made of quintuple-shaped counterfeit money (Xiaoping to fold ten). We can see that its thickness is higher than the standard for real money without exception.
