It could be the personal collection of Longfellow.: hetian jade beast grain with the skinLong and 9.6 cm wide and 2.5 cm thick, 0.6 cm weighs 33 gThis one choose hetian jade, exquisite moist, meticulous and flawless, coping with skin, body beast grain carving, the whole device modelling austere like that, art of using saber fluent resolute, regardless of the materials, methods, metaphor is faultless.