 Chinese cash coins with flower (rosette) holes () are a type of Chinese cash coin with an octagonal hole as opposed to a square one, they have a very long history possibly dating back to the first Ban Liang cash coins cast under the State of Qin or the Han dynasty.Although Chinese cash coins kept their round shape with a square hole from the Warring States period until the early years of the Republic of China, under the various regimes that ruled during the long history of China the square hole in the middle experienced only minor modifications such as being slightly bigger, smaller, more elongated, shaped incorrectly, or sometimes being filled with a bit of excess metal left over from the casting process.However, for over 2000 years Chinese cash coins mostly kept their distinctive shape.