Roman Republic, AE Semis 27mm, anonymous. After 211 BC.

Laureate head of Saturn right; S behind.
Prow of galley right; S above, ROMA below. 

Crawford 56/3; Sydenham 143a; BMCRR 229; Sear 766. 

Used with permission of CNG coins, www.cngcoins.com, October, 2011