Now everyone is chasing silver, platinum, and the next copper ancient coin, with square holes and round bodies, symbolizing "Heaven is round, Earth is square." It carries calligraphy, measures, and the concept of existence and non-existence, allowing a glimpse into the thousand-year history of merchants' exchanges and cultural融合. Collecting it is not only preserving a tragic history and top-tier minting art but also safeguarding a nation's memory that will never be forgotten. Its cultural and market value remains precious through the ages.