Pre-Qin coinage (before 220 BC)

The diverse pre-Qin coinage included various spades, knives, bridges, fish-money and other early coins, as well as the more recognizable round coins with a square or round hole. These earliest coins are inscribed in beautiful primitive calligraphy and are among the most popular chinese collectible coins. 

The coinage was standardized with the unification of China under the Qin dynasty - the sole coin was the Ban Liang, which was cast in a variety of sizes and weights.