The Camp Stool Fresco shows a scene of ceremonial drinking, with two figures sitting opposite one another sharing a kylix. The fragments were discovered in 1901 in the area of the West Magazines.
Bibliography
Evans, Arthur. 1935. The Palace of Minos at Knossos, IV, pp. 387-390, fig. 323
Myres, John (ed.). 1936. British Archaeological Discoveries in Greece and Crete 1886-1936, p. 22