Floor fragment with start of stem. Two concentric circles with central dot on underside. Max. dim. 0.053. H. A. Thompson, Hesperia 28, 1959, pl. 22:b; Schefold, Göttersage, p. 154, fig. 203; LIMC V, 1990, ... Ca. 510 B.C ... The earliest known literary reference is Pindar, Pythian 2.21--48, composed in the 470's for Hieron of Syracuse.