This silver swivel ring has two faces showing a sphinx and a chimaera. The faces are carved from two separate ivory pieces. Evans acquired this ring and two others in Athens in around 1912 and saw in them an echo of Bronze Age iconography.
Bibliography
Evans, Arthur. 1912. “The Minoan and Mycenaean Element in Hellenic Life”, Journal of Hellenic Studies 32, pp. 294-297, fig. 6
Myres, John (ed.). 1936. British Archaeological Discoveries in Greece and Crete 1886-1936, p. 32-33