Roman Republic, Anonymous, Rome mint, 211 BC. And later,
Æ As (31-32 mm / 32.18 g),
Obv.: Laureate head of Janus, value mark I above.
Rev.: Prow of galley right; value mark I above, ROMA below.
Crawford 56/2 ; Sydenham 143 ; Kestner 508-592 ; BMCRR Rome 217-228 .