Collection value of seals in Song Dynasty

Judging from the auction market, the official seal of bronze seal is the most sought after by the market, such as "Thousands of households unify the military seal", with "Thousands of households unify the military seal" engraved on the back and "China calligraphy ritual system, peaceful February" engraved by Xu Shouhui, a peasant uprising army at the end of Yuan Dynasty. Another gold-plated bronze seal of a captain in Wei and Jin Dynasties was valued at 50,000-80,000 yuan, and the transaction price reached190,400 yuan. A captain in the car is an official name, which was abandoned in the Song Dynasty after the establishment of Emperor Wu of Han Dynasty. This bronze seal is undoubtedly a record of history at that time.