Rare Large 2 Cash Mother Coin 母錢 Yong Zheng Tong Bao, Beijing Board of Revenue Mint! 1723 AD
Large 2 Cash Size Mother coin, 母錢
Obv: Yong Zheng Tong Bao
Weight: 9.3 grams; Size: 30 mm; Material: Fine Brass
“Mother Coins 母錢” in old Chinese coin making
During the Han Dynasty, Chinese mints partially solved the inconsistencies in cast coins by using bronze master moulds. Master moulds were used to prepare the clay moulds which will be used for the actual casting.
Mother coins are pressed on the wet sand in the wooden frame (first half of the mould). Rods are placed between the coins to create channels where the molten metal can flow. A second frame (second half of the mould) is placed on top and pressed tightly. This imprints the designs of the obverse and reverse of the mother coins on the sand in the frames.
The Yongzheng Emperor (雍正帝 → yōngzhèngdì) (born Yinzhen (胤禛 → yìnzhēn) December 13, 1678 - October 8, 1735) was the fourth emperor of the Manchu Qing Dynasty, and the third Qing emperor to rule over China, from 1722 to 1735. A hard-working ruler, Yongzheng's main goal was to create an effective government at minimum expense. Like his father, the Kangxi Emperor, Yongzheng used military force in order to preserve the dynasty's position. Suspected by historians to have usurped the throne, his reign was often called despotic, efficient, and vigorous. Although Yongzheng's reign was much shorter than the reigns of both his father, the Kangxi Emperor, and his son, the Qianlong Emperor, his sudden death was probably brought about by his workload. Yongzheng continued an era of continued peace and prosperity as he cracked down on corruption and waste, and reformed the financial administration.