Chinese ancient coins are usually referred to the coins in Qing dynasty. Qing dynasty is consisting of KangXi, yongzheng, Qianlong, guanshui, etc. Most of Chinese coins are I ching coins. In feng shui, people use I ching coins to foretell fortune or as fortune coins to bring wealth. The Chinese coins here are not real ancient coins. They are all artificial coins.
Feng shui coins have 3 coins, 6 coins and 8 coins, etc money coins. Usually 3 coins are used to be kept inside the pocket or wallet to enhance money energy. 6 coins are used to match the flying star #6 which is in charge of career whilst 8 coins are used to activate the money flying star #8.