Chinese cash coins are traditional currency used in China for centuries, primarily from the Han Dynasty (206 BC – 220 AD) until the early 20th century. These coins are typically made of bronze or copper and feature a round shape with a square hole in the center, allowing them to be strung together for easy carrying. The inscriptions on the coins often include the name of the issuing authority and the year of minting. The design of Chinese cash coins reflects the cultural significance of Chinese numerology and feng shui. They were not only used for trade but also held symbolic value, believed to bring good luck and prosperity. Today, these coins are collected by enthusiasts and serve as a reminder of China's rich monetary history.