A white jade 'dragon' box and cover of rectangular form, the cover carved in high relief with a sinuous dragon among scrolling clouds encircled around a flaming pearl, the rim of the cover and base incised with a key-fret border, the stone of even tone, fitted box (2) 8 cm long. Provenance: Bonhams and Butterfields, San Francisco, 16 November 2009, lot 3130