lot 072，1902-1906年安徽省造光绪元宝每元当制钱十文，初铸版，中心方孔，伍德华目录无此币，Y39.2，NGC MS63 BN，NC 藏品，
中国铜元十大珍拍卖成交：2012年10月，北京，UNC，成交价95 800美元；北京，PCGS SP65，成交价87 100美元。以传统浇铸法铸成的中国方孔圆钱，在使用了两千年之后，被从外引进的新式机制币取代，最后连中国钱币曾经引以为傲的特徵-中心方孔也彻底失去了踪迹，中国进入了无孔机制币的时代。但在数以亿计的机制币铜元中，唯有一种保留传统方孔的“安徽方孔十文”，为龙图铜元中唯一的方孔钱，且存世量极少，成为藏家追逐的目标。中国铜元十大珍之一，很多藏家都想将其纳入自己的收藏。张南琛先生的这枚可能是通过中国香港的张璜先生买入。该币为NC 收藏中购买价格最高的几枚自已，也是其最喜欢的钱币之一。，
CHINA-ANHWEI ND(1902-1906) 10 Cash Copper, with square hole in center, not in Woodward, Y39.2, NGC MS63 BN, NC Collection, top ten Chinese copper coinsAuction Result(s):10/2012, Beijing, UNC, realized USD 95,800; Beijing, PCGS SP65, realized USD 87,100.Chinese Square-holed round coins produced by traditional casting technique was replaced by modern machine-struck coins after being used for 2000 years. Ultimately, the square hole at the center, the unique feature of Chinese coins, disappeared. China came to mint machine-struck coins without holes. Among billions of machine-struck copper coins, only Anhwei square-holed 10-cash copper coins reverse this traditional feature. It is also the only square-hole dragon copper coin. It is extremely rare and popular among collectors.One of the top ten Chinese copper coins all major Chinese copper coins that collectors strive to add an example of this Anhwei 10 cash with a square hole to their collection. Likely acquired through Hong Kongs Chang Huang. This is one of the highest prices paid for a copper coin in the NC collection and one of Nelson Changs favorite coins.
