营造法式
Furthermore, the oldest surviving rotating book case dates to the Song period (12th century), found at the Longxing Monastery of Zhengding, Hebei province. However, there were nine prominently known revolving repositories during the Song period, and one of them was even featured in an illustration of Li Jie's book "Yingzao Fashi" ('Treatise on Architectural Methods') of 1103. The rotating repository of 1119 in Kaifu Temple near Changsha had five wheels which all turned together, and the revolving repository at Nanchan Temple of Suzhou featured a brake system of some sort (sinologists are still uncertain how this operated, since the earliest known curve brake bands appear in the time of Leonardo da Vinci in Europe). A later Muslim traveler Shah Rukh (son of the Turco-Mongol warlord Timur) came to Ming dynasty China in 1420 during the reign of the Yongle Emperor, and described a revolving repository in Ganzhou of Gansu province that he called a 'kiosque':