This Jade Bear structure originated in the Shang Dynasty and evolved to the Zhou Dynasty with some differences.
01.The design on body is of thorns and hooks,very much different from the lei-wen(thunder clouds) of the Shang.
02.The unique difference is the partial wider recess hole at the bottom than at top of head.
03.This Jade Bear in the round is more stylish(notice the hooked paws).
Very rare Jade Bear in the round from the Zhou Dynasty of Old China.