Terracotta volute-krater (vase for mixing wine and water) early 6th century B.C. Attributed to Sophilos Sophilos is the first known artist from the Athenian Potters' quarter to have signed his name on his workonce as potter and three times as painter. This early form of the volute-krater is decorated with two boars in front and a bull with another animal in back.. Terracotta volute-krater (vase for mixing wine and water). Greek, Attic. early 6th century B.C.. Terracotta; black-figure. Archaic. Vases