This method uses real money to make molds. Most of the cast copper water is the melting of modern copper coins or bronze mirrors, and the cast copper is still bronze or red copper. Due to thermal expansion and contraction, the cost of turning money is less than the cost, that is, one turn of casting. There are many such fake money listed, and some of them can be confusing.
2, change the method
The old copper coins were thickened, and the original pen and ink were polished away, and another rare product was carved to fabricate. Many of these fabricated products. For example, the five baht was changed to Taiqing Fengle, and the Xiaoyongquan was changed to Yongguang Jinghe. Another choice is to add engraved pen and ink or stars and moons with ambiguous bronze text system. Differentiate yourself in a variety of ways.
3. Adhesive stitching method
This method is mostly used for Lianquan, Hebei and Tongwen. Take two or more of the same products, grind away the part that has no money, and glue and splice, and it will become Lianquan, Hebei, or Tongwen. In addition, the backs of the two old coins were rubbed off, and they were put together to become two-sided pen and ink.
4, glorious old method
The unearthed ancient coins have been publicly corrupted for hundreds of years. Some are covered with green, some are red, green, yellow, and white. The ancient money passed down for a long time, the oil sweat into the watch, the money body is yellow brown or brown. In order to obtain the external consequences of "buried alive" and "passed down from ancient times," the counterfeiters applied Hunan Television's "Treasure Hunt in the West". Rare methods are the following:
1.Look at the authenticity of copper
Ancient bronze coins are made of bronze, white copper, red copper and brass. Prior to the Jiajing period of the Ming dynasty, the coins were generally made of bronze, a small amount of white copper, and more of the copper coins of the Liao Dynasty. Bronze is easy to break, and the fracture surface has no copper color. After rubbing the fracture surface on the stone, the copper color appears. Brass coins and bronze carving mother money began in Jiajing in the Ming Dynasty. If you find brass coins or bronze carving mother money before Jiajing in the Ming Dynasty, it can be judged that it is post-casting.
2, listen to the sound to determine the authenticity
The older the bronze coins are, the more serious the calcification is. The calcified copper coins lose the original sound of copper, and the sound of hitting with metal is dull. The lower the sound, the longer the time. Any bronze coins with high-pitched sounds indicate no calcification and can be judged as new imitations.
3.Smell the smell to be authentic
The ancient coins are buried in the ground for a long time and have a rusty color. When they are unearthed, they will have a pure scent of earth and no other smell. The fake money has a fake rusty color, and has strange smells such as acrid glue, scent, and lacquer.
4, rust color to determine the authenticity
Bronze coins will rust when they are not properly stored. The rust layer of the ancient bronze coins is thin, and the rust is local, and most of the money faces are pale black. Unearthed copper coins have different rust colors. The copper coins unearthed in the pit generally have a thick rust layer. After the coins are rusted together, there is a phenomenon of "pan gold", "pan silver", and "pan blue". The phenomenon of "three pan" cannot be imitated;