Wang Wanchun's signature edition is worthless. According to relevant public information, Wang Wanchun's signature printing plate is a book signed by the author Wang Wanchun and stamped with his own seal, which is valuable for collection and worthless. The earliest existing Zhong Yinpu should be six volumes of Gu Congde's Ancient Yinpu Collection, which laid the foundation for the compilation style, stationery specifications and textual research of later generations.