During the Tongzhi period of the Qing Dynasty, Shao Zhiyan, a pen dealer in Hangzhou, bought a newly discovered orchid "Lv Yun" at a heavy price of 500 taels of silver, put it in the shop, renamed it "Shao Zhiyan Bizhuang", and engraved the trademark "Zhilantu" on the lake pens he operated. Therefore, the people who admire the orchid are all enjoying the fragrance of Lv Yun, jade and flowers in Bizhuang, smelling the fragrance and choosing a pen. Bizhuang's reputation has been greatly improved.