One is the ink book introduced to Japan in the Tang Dynasty. Calligraphy ink "True Grass Thousand Characters" with postscript, 29.3× 14.2 cm per page. Japanese private collection.
One is the stone carving of Changsi in the Northern Song Dynasty, which is preserved in the forest of steles in Xi, Shaanxi.
The Ugliness of the Grand View of the Song Dynasty (1 109) was carved in Xi 'an, Shaanxi Province today, also known as "Shaanxi Ben". There are eight stones, each line is twelve words, and the original stone still exists in the forest of steles in Xi 'an. It is said to be "quite exquisite, without resentment". Among them, the words "people" and "base" in the Tang Dynasty are all missing.