Jade articles are included in three books. Most of the jade articles included in Book I were exeuted in the periods from the New Stone Age to the Northern and Southern dynasties (420-589). All of them have not been put out on public display so far.
Book II includes the jade articles produced in the dynasties from Sui, Tang to Ming. All of them are treasures handed down from ancient times. Their production dates are reliable.
The jade articles contained in Book III were found in Qing's imperial place. They are kept in the Palace Museum.
