Cr 56/4 AE Triens Anonymous

Rome, after 211 BCE
o: Helmeted head of Minerva right; above, four pellets
r: ROMA. Prow right; below, four pellets.
9.08 gm, 25.00 MM
This coin is vastly better in hand than this photo. The patination is perfect. The execution of the reverse is somewhat amusing -- the prow is almost crammed to fit within the border due to a disproportionally large hull and seems curled back on itself, hardly an impressive vessel if it were real.
The "sextantal" series that are collected under Crawford's Type 56 is really a catch-all for numerous sub-groups, for which there is no better resource than McCabe's website to distinguish into several groups. Obviously, since I am not making that attribution at the moment, I have not taken the close effort with this coin, even though I like looking at it. Compare it to my earlier example in this gallery, which is not nearly as nice.