Private casting refers to coins minted privately by civilians or military and political officials with local separatist forces without the approval of the central government. The purpose of making privately minted coins is to circulate. The coins minted by powerful military and political officials in the local separatist regime without the approval of the central government are of high quality because of their certain economic and technological strength, but they are quite different from the central version, and this currency has the nature of local currency to a certain extent.
During the Beiyang period of the Republic of China, warlords of various factions were dominant, and their coins were called warlord coins, such as various coins of the Tang Dynasty, Yuan Shikai's round silver coins such as Sichuan-Chinese version, Fujian version and Dakou version. During the national period, the Kuomintang gradually wiped out the armies of warlords everywhere, and the coins minted privately by local governments were called local coins, such as Datou in Yunnan and Chuanyang.
Extended data:
Private silver coins are privately minted silver dollars. Yuan Datou Coin, the commemorative coin of Sun Yat-sen's founding of the People's Republic of China, is mainly trafficked from the coin market in Taiwan Province Province. It was minted in Hainan Island during the Republic of China, so it is also called Joan 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. )
Identification method
1, check the weight and measure the size.
A dollar of silver and the original seven-and-two-dollar Yang Long, the weight standard is generally 26.6 grams, and the circulation wear should be no less than 25.5 grams, otherwise a question mark should be put;
2. Listen to the sound
A touch of real money will make a pure, euphemistic and beautiful sound. On the contrary, its sound is high, sharp, short, pure or dumb.
Step 3 identify colors
The more polished the real money is, the whiter it is, the crystal is shining, and the appearance is consistent with the product. If you wipe it, it will turn black, gray or silver-plated, and there is an impetuous feeling.
4. Look at these patterns
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.
Step 5 check the side window
After the real money circulates, although the side teeth are somewhat worn, the tooth spacing is uniform as a whole; Naturally smooth and round, on the contrary, the edge teeth are stiff, irregular and different in length, which has a shallow and deep feeling.
6, know the patina
In the process of circulation or storage, the surface of silver coins will leave a special quality, which is called patina, also known as black lacquer antique. It 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.
7. Touch the coin surface
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.
Baidu Encyclopedia-Yuan Datou