Made in the Ming Dynasty (1368-1644), it is 11.9 cm long and 2.3 cm wide and was unearthed in Mengzhuiwan, Chengdu. Themed with Dragon Teaching Its Son, it is created from high-quality jade with an exquisite craftsmanship and an ingenious design. Two dragons, one big and one small, represent father and son, emphasizing the importance of family education.