A small black glazed bowl with metallic 'oil spot' decoration

Property from a San Francisco Estate
A small black glazed bowl with metallic 'oil spot' decoration
Jin dynasty
Subtly formed with an indented lip on the exterior walls that curve inward to a neatly cut foot ring and shallowly recessed base, the lustrous black glaze marked throughout with minute silvery 'oil spots' and thinning to a russet hue along the rim, a dark purple slip covering all unglazed surfaces except for tiny patches that reveal the underlying pale gray clay fabric.
3 3/8in (8.5cm) diam.