5 Zhu ("Western Han" type; with dot)

The 5 Zhu coin was introduced by Emperor Wu of the Western Han dynasty in 118 BCE to standardize the erratic currency system of the early imperial period. By the time this specific issue was minted around 90 BCE, the coin had become the bedrock of the Chinese economy, featuring a circular shape with a square hole that allowed for convenient stringing. Its design, characterized by the elegant seal script characters 'Wu Zhu', represented a deliberate effort by the state to centralize fiscal control and replace the varied, often debased issues of local feudal lords.

This specific variant, distinguished by the presence of a decorative dot or small mark, reflects the metallurgical and minting standards maintained by the Western Han imperial workshops. During this era, the government strictly controlled the casting process to ensure weight consistency, a rarity in ancient commerce. Historians view these coins not merely as currency, but as evidence of the Han dynasty's administrative reach, as they were produced in such vast quantities that they remained a standard of exchange for centuries, influencing coinage styles across East Asia long after the dynasty fell.