English School (19th century), Portrait of a young woman, bust length, in deshabille, watercolour

English School (19th century), Portrait of a young woman, bust length, in deshabille, watercolour on ivory, oval 5 x 3.5 cm, in a gold navette-shaped mount with plaited hair verso and English School circa 1770, Portrait of a young woman, bust length, dressed in white, believed to be Ann Cassin, watercolour on ivory, oval 3.5 x 3 cm, in a gilt metal mount inscribed verso Ann Cassin, Ob. 17 Octr. 1821 aged 43,