GIOVANNI BATTISTA CANEVARI (ITALIAN 1789-1876) Portrait miniature of Miss F. B. S. Wilder nee Augusta Cornwall, seated, wearing a black dress, embroidered shawl over her shoulders and a gold and jewelled hair band adorning her curled and upswept hair Signed and inscribed, Canevari Roma, right hand edge and inscribed verso, Mrs F. B. S. Wilder ne Augusta Cornwall / daur of John & the Hon. Susan Cornwall/ done at Rome 1838/40 Watercolour on ivory (small hairline crack upper left) 12.2 x 10.3 cm (4 3/4 x 4 in)