Jade cong tube, Longshan Qijia system (2200-1700 BCE)Image Number:/JadeDescription:dark grey green sapphire, It is densely covered with black algal filament inclusion sedimentary s...

Jade cong tube with patterns added in the Qing dynamic, Longshan Qijia system (2200-1700 BCE), Stationery and stationery. From the late Ming Dynasty to the early Qing Dynasty, anti...

Jade cong tube, Longshan Qijia system (2200-1700 BCE)Image Number:/JadeDescription:dark grey green sapphire, It is densely covered with black algal filament inclusion sedimentary s...

Jades cong tube, Longshan Qijia system (2200-1700 BCE)Image Number:/JadeDescription:dark grey green sapphire, It is densely covered with black algal filament inclusion sedimentary ...

Jade cong tube with patterns added in the Qing dynamic, Longshan Qijia system (2200-1700 BCE), Stationery and stationery. From the late Ming Dynasty to the early Qing Dynasty, anti...

Jade cong tube with patterns added in the Qing dynamic, Longshan Qijia system (2200-1700 BCE), Stationery and stationery. From the late Ming Dynasty to the early Qing Dynasty, anti...