Anonymous. 189-180 BC. Æ As (35mm, 37.66 g, 1h). Bull and MD series. Rome mint. 

Laureate head of bearded Janus; I (mark of value) above
Prow of galley right; bull standing right and MD monogram above; I (mark of value) to right, ROMA below. 

Crawford 142/1; Sydenham 299; CNR Dvrmia 1/1 (this coin); Type as RBW 629. 
From the Andrew McCabe Collection. Ex Münz Zentrum XXX (21 November 1977), lot 183. 

Classical Numismatic Group - Electronic Auction 411, Lot 344 13 Dec 2017