Bronze mirrors in the Song Dynasty have plain faces, including Hua Niaowen's and characters' stories. Characters' stories are the most expensive, more than a few thousand, while plain mirrors are the cheapest, several hundred yuan. For example, those with trademark inscriptions are basically plain mirrors, such as Uncle Nian in Huzhou and Shi Shiwulang in Huzhou, and Jiankang Mansion is less in trademark inscriptions, such as places like Jianzhou, Raozhou, Changzhou, Longxing Mansion and so on.