Piston

a statuary, who added the figure of a woman to the biga made by Tisicrates. (Plin. H. N 34.8. s. 19.32.) Tisicrates flourished about B. C. 300, and Piston of course lived about the same time or later. He also made statues of Mars and Mercury, which, in Pliny's time, stood in the temple of Concord. (Plin. l.c.) [P.S]