Cup, tin-glazed earthenware (delftware), with a bust portrait of Charles II, probably Southwark, 1660-1665

A bust portrait of Charles II under an arch in dull blue, ochre, yellow and manganese-purple inscribed C R X. White interior. The underside has a marking in blue.
Body colour: Buff.
Glaze: Pinkish white with thick greenish additions on rim and on part of handle.
Shape: Handle flat on inside, rounded on outside. Underside glazed except at outer edge, concave without foot-rim. (Alphabetic shape …