Rare small rock crystal seal shaped like a dragon and bearing 4 characters 'Zhi cun Gaoyuan' "nurture the highest ambitions" coming from "precepts for my son" written in 233 by the strategist and statesman Zhuge Liang as a political testament in a style akin to the seals of the Han era and most certainly intended for a figure of high society. China 18/19em H 7,5cm Long 4,5cm