A Roman sard intaglio depicting Apollo

A Roman sard intaglio depicting Apollo, c1st century BC - 1st centruy AD, Apollo's head in profile and with laurels, in a 19th century composite gold mount with inner inscription dated 1886, intaglio 1.2cm high, ring size K 1/2

For an impression of a similar intaglio, see J. Boardman, C.Wagner, D.Scarisbrick, E. Zwierlein-Diehl, The Marlborough Gems: Formerly at Blenheim Palace, (Oxford University Press), p.80, plate. no. 118.