Richard Cosway, 18th century portrait miniature in ivory, of ‘Mrs Abington (Nee Francis Barton) actress’, oval form, the sitter wearing large blue hat adorned with white feather, her white blouse with blue bow, the reverse entitled in ink and with artist’s signature and ‘Principis Pinxit 1782’. 10.4 x 7.8 cm In original rectangular ebonised frame with convex glass, gilt metal mounts and acorn and ring hanger.