Rare ceremonial blade Gui in green jade

Chinese archeology. Rare ceremonial blade gui in green jade with two tigers.
Jade nephrite celadon hetman quality.
Beautiful finely engraved decor of phoenix and square spirals. In the tradition Zhou.
This period of Chinese history corresponds to what many consider to be the peak of manufacture of Chinese bronze and Jade objets.
Jade objets were prized in the graves of the Shang for their protective functions.
As in the previous period, it is zoomorphic amulets, curved plates, bi discs, specters or blades.