Chinese Qing Dynasty copper coins

In 1902 Anhui Province made Guangxu Yuanbao square hole ten article copper coin trial casting sample coin, Y-39.1/CL-AH.01, broken version, because of its unique shape and attract attention, is the most characteristic and legendary copper treasure, has been ranked in the Chinese copper "ten King Kong", the copper enthusiasts eagerly pursue; Auction layout is typical, exquisite production, dragon map scale sharp, plate bottom is flawless, copper light is warm, sample style is extreme, rare, GBCA SP65BN Since Guangdong made copper profits very abundant, the provinces have followed suit. Guangxu 28 years (1902 years), the governor of anhui province nie made æ¤ play must in anqing original silver site was set up in anhui copper coin innings, add version machine 20 units, mold may come from Japan or restraint. According to records, the Birmingham Mint in the United Kingdom once provided the "Flying dragon" steel mold, but no large number of mints have been seen. The factory has also tried to produce Manchu "Bao Wan" square hole ten Wenshuilong copper, two days after opening, the mint machine suddenly broke down, then shipped to Shanghai for maintenance, in August of the same year to resume production. Although the historical data did not indicate the specific cause of the failure, according to the physical condition and indirect historical data, it is most likely because of the immature technology of middle hole drilling in the production of square hole copper coins. The standard manufacturing process of copper coins is: molten ingots, rolled into thin slices, flushed into cakes, annealing, cleaning and drying, polishing, printing. If there is a hole in the middle of the coin, the rolling piece should be punched before punching the cake, for the reason that this method is safe and effective. If the cake is punched first, the operation is time-consuming and the demold is difficult, and it is not easy to locate the square hole and prevent skew. In 1905, Guangxu's thirty-one year (1905), the Financial Department of the Liquidation and the Ministry of Household Affairs reported the "Reorganization of the Mediation Mediation Law Discretionary Regulations" : "At the beginning of the provincial copper yuan bureaus, casting was not enough, often purchased Japanese cast copper cake, once printed can be exercised." At that time, anxious to make a profit, the provinces were competing to set up factories. They bought only a few printing machines and started operations in a hurry. They made do with rolling machines, blanking machines, polishing machines, annealing machines, cleaning machines and drying machines. What's more, in the cast copper cake punching, unless there is a special device, will occur demold difficult situation, of course, the factory will not ask for trouble. The above may be the main reason for the "waste hole" of copper. Anhui copper coin bureau of open system, the heart will square hole features of Chinese traditional ZhiQian combined with western coinage technique, conception is better, but since there is no special equipment is used to coin cakes perforation, more is not on the same machine is used to punch and then printed version, to buy bread ready money, processing up more difficult, cannot quickly stepped into the stage of mass production. Anhui Copper Yuan Bureau eventually gave up the square hole pattern of copper casting due to unprofitable. Because of its exquisite production and rare existence, square-hole copper coins were identified as trial coins. At present, Anhui square hole, according to the back of the English "AN" there is no trace caused by mold collapse, divided into the first edition and broken edition two, no matter what kind of edition, are very rare in the world.