The Phaistos Disc was discovered in 1908 by Italian excavators. Evans was particularly interested in it because of his study of the Cretan scripts and discussed it as some length in the Palace of Minos. It remains undeciphered.
Bibliography
Evans, Arthur. 1921.
The Palace of Minos at Knossos, I1, pp.
647-668, fig. 482
Myres, John (ed.). 1936.
British Archaeological Discoveries in Greece and
Crete 1886-1936, p. 27