Stiela, Sicily, AR hemilitra, 8mm, 413-405 BC, 0.34 g. 

Laureate youthful head of river-god left, reed before head.
STI, forepart of man-headed bull left. 

Hoover HGC 1272; SNG ANS 1367.

With permission of Nomos AG obolos 6, Lot 200, Nov. 2006