English School, late 18th century Portrait of Lady Catherine Wallace, bust length, in a white dress miniature on ivory 6.1 x 4.9cm, in a gilt-metal frame, the openwork border set with turquoise and seed pearls Condition report: Ivory is a little warped. Colours a little faded. A little very light yellowing. Some of the turquoise stones are worn and darkened. Not seen outside of glazed frame.