This gold ring was said to have been found in the Knossos Harbour Town, probably Poros (now a suburb of Heraklion). It shows a man and woman next to a ship, a scene which has been interpreted as Theseus and Ariadne departing Knossos.
Bibliography
Evans, Arthur. 1935. The Palace of Minos at Knossos, IV, pp. 953-955, fig. 923
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. 280