Naxos, Sicily, AR Tetradrachm, ca 460 BC. 28 mm, 17.33 g.

Bearded head of Dionysos right, wearing wreath of ivy, hair tied in bunch behind head.
N-AXI-ON, nude and ithyphallic Silenos squatting facing, head left, holding kantharos in right hand, leaning on left. 

Cahn 54; SNG ANS 515; SNG Lloyd 1150; SNG Lockett 840; Gulbenkian 
230-231; Jenkins 673; SNG Fitzwilliam 1108; Kraay-Hirmer 6 (all same dies). 

With permission of Roma Numismatics Auction XX, lot 65. Oct. 2020.