Hetian jade double dragon button seal.Specification: 9.65 cm high 11.4 cm wide weighs 2812 g.Hetian jade expected, the monolith carve, seeps the color nature, squares, high relief technique, the dragon god carve one's face, great momentums, printed intaglio drive makes poems, handwriting norm, slicing technique stiffness, norm, at the bottom of the signet skin shell mellow patina, collection level!