For more than 400 years, in Longchuan, Jixi County, a vertical "Enrong" plaque is installed in the middle of the main building, with relief double dragon opera beads around it. On the north and south sides of the lower floorboard, the inscriptions "Yishi Shangshu" and "Yishigong Bao" are respectively inscribed. Calligraphy is vigorous and fluent, with remarkable charm, which symbolizes handwriting for calligraphers.