Corn-ear (first) series.     AE Semuncia. Sicily, 214-212 BC.   Obv.    Head of Mercury right, wearing winged petasus.        Rev.   Prow right; above, corn-ear and ROMA.     Cr. 72/10.     2.52 g.   15 mm.      RRR.  Extremely rare, with dark green patina. Slightly rough surface on reverse.    Good VF.