This gold ring was purchased by Evans before 1901 and was said to come from Mycenae. It shows two lions tied to a pillar, echoing the design of the Lion Gate at Mycenae.
Bibliography
Evans, Arthur. 1901. “Mycenaean Tree and Pillar Cult and Its Mediterranean Relations”, Journal of Hellenic Studies 21, p. 159-60, fig. 39
Myres, John (ed.). 1936. British Archaeological Discoveries in Greece and Crete 1886-1936, p. 32
Hughes-Brock, Helen and Boardman, John. 2009. Corpus of Minoan and Mycenaean Seals VI: Oxford, the Ashmolean Museum, no. 364