Watch List notes:

L. Calpurnius Piso Frugi, 90 BC. Denarius (Silver, 18 mm, 3.83 g, 1 h), Rome. Laureate head of Apollo to right; behind, Y (?); before, N. Rev. L•PISO FRVGI / LXXVIII Horseman galloping right, holding branch. Babelon (Calpurnia) 11. Crawford 340/1. RBW 1251ff. Sydenham 663. Very fine.