Lot Essay
Item one: this is a characteristic ring type from Western Europe at the very end of the Roman period. For British parallels, cf. C. R. Johns and T. Potter, The Thetford Treasure, London, 1983, nos. 10-12; also, M. Henig, A Corpus of Roman engraved gemstones from British sites, British Archaeological Reports Series 8, 1978, App. 202, p. 316, plate series A.
Item two, cf. M. Henig, The Lewis Collection of Gemstones, BAR Supp. Series 1, 1975, nos. 185-186, p. 48, pl. 12 "It is generally thought that the type represents a visit to an oracle such as Dionysios of Halikarnassos describes at Tiora (Ant. rom, I, 14) where the responses were given by a woodpecker."
Item two, cf. M. Henig, The Lewis Collection of Gemstones, BAR Supp. Series 1, 1975, nos. 185-186, p. 48, pl. 12 "It is generally thought that the type represents a visit to an oracle such as Dionysios of Halikarnassos describes at Tiora (Ant. rom, I, 14) where the responses were given by a woodpecker."