Charles Robertson (Irish, circa 1760-1821)
A Gentleman, wearing brown coat, white waistcoat, stock and cravat, his powdered wig worn en queue.
Gold frame, the reverse with aperture, glazed to reveal seed pearl monogram JW on vertically laid strands of hair.
Oval, 44mm (1 3/4in) high
Provenance: Sotheby's, 4 November 1942