FOUR ARCHAISTIC JADE BI QING DYNASTY, 18TH / 19TH CENTURY

each of circular form with a central aperture, three carved on one side with small raised bosses, repeated on one, the other two with a series of  'comma' spirals on the reverse, the stone of celadon color with darker opaque inclusions, wood stand, a fourth disc with interlocking archaistic design, the stone of grayish white with milky inclusions; together with a small carved jade cong, box (8)