Roman Republican coinage. Anonymous AE As, Sicily Mint 179-170 BC. 32 mm, 23.33g.

Laureate and bearded head of Janus, I above.
Prow right, prawn above, I to right, ROMA below.

Crawford 156/3; Syd. 344; Sear 683.
Very rare

With permission of Numismatica Ars Classica auction 61, Lot 685, Oct 2011.