Ren Zhong "Song Yin Pin Tea Drawing", core size 128x32, mineral pigment coloring Ren Zhong "Song Yin Pin Tea Drawing", core size 128x32, mineral pigment coloring Ren Zhong "Song Yin Pin Tea Drawing", core size 128x32, mineral pigment coloring Ren Zhong "Song Yin Pin Tea Drawing", core size 128x32, mineral pigment coloring Ren Zhong "Song Yin Pin Tea Drawing", core size 128x32, mineral pigment coloring Ren Zhong "Song Yin Pin Tea Drawing", core size 128x32, mineral pigment coloring Ren Zhong "Song Yin Pin Tea Drawing", core size 128x32, mineral pigment coloring Ren Zhong "Song Yin Pin Tea Drawing", core size 128x32, mineral pigment coloring Ren Zhong "Song Yin Pin Tea Drawing", core size 128x32, mineral pigment coloring