λ Richard Cosway RA (1742-1821)

λ Richard Cosway RA (1742-1821)
Portrait miniature of George Osborne, 6th Duke of Leeds (1775-1838), wearing a black coat
Signed, inscribed and dated Rdus Cosway/R.A./Primarius Pictor/Sereniffimi Walliæ/Principi/Pininxit/1801 (to backing card)
Oval in a gilt metal case
78 x 62mm

Provenance:
Christie's, London, 17 March 1975, lot 72;
Private Collection