A RARE INSCRIBED BLACK AND GREY JADE BOULDER MING DYNASTY |

the smoothly polished stone of irregular shape resting on a flat base, lightly incised with a poem by the Northern Song poet Su Shi on the subject of Daoism, written in kaishu with one seal zhenxiang ('treasured and appreciated'), the grey stone with black and brown markings and veining

Sotheby's Hong Kong, 8th October 2009, lot 1705.