Although described as a bowl in the catalogue this fragment was later restored as a cup. The thinness of the walls led Evans to use the trerm ‘egg-shell ware’. Egg-shell ware is often decorated with impressed designs which, with the shiny black Kamares slip, add to the effect of metal, more specifically tarnished silver.
Bibliography
Evans, Arthur. 1921. The Palace of Minos at Knossos, I, pp. 243-244, figs. 183a, 194d
Myres, John (ed.). 1936. British Archaeological Discoveries in Greece and Crete 1886-1936, p. 14