拍品專文
This text by Nasir al-Din Tusi is referred to by different scholars respectively as the Jawahirnama, Kitab al-Jawahir, Risala al-Jawahir or Nama Ilkhani. It focuses on the different properties of gemstones and minerals and was written on the order of Hulugu Khan (circa 1218-1265). For more information see Mathematicians, Astronomers and Other Scholars of Islamic Civilisation 9th-19th C, Istanbul, 2003, pp.211-219, no.606, Mi1.