Two monochrome glazed stoneware bowls

Property from a San Francisco Estate
Two monochrome glazed stoneware bowls
Northern Song/Jin dynasty
The first potted with a shallow well, a flared rim above an incised line along the outside walls curving inward toward the foot and recessed base, the russet brown glaze of even hue covering all surfaces except the buff fabric exposed on the foot pad; the second bowl with rounded sides rising from a shallow foot to the flared rim, the shiny black glaze smoothly covering the wide well but applied unevenly to the exterior walls and recessed base where the buff fabric is exposed.
3 7/8 and 4 3/4in (10 and 12cm) diam. (2).