L. Calpurnius Piso Frugi.     AR Denarius, 90 BC.   Obv.    Laureate head of Apollo right; behind, O; below chin, F.        Rev.   Horseman galloping right holding palm; above, X; below, L. PISO FRVGI/ tongs.     Cr. 340/1; B.  11.     4.03 g.   17.70 mm.        Full weight and choice example.    About EF.