Watch List notes:

L. Calpurnius Piso Frugi. 90 BC. AR Denarius (18.5mm, 3.91 g, 2h). Rome mint. Laureate head of Apollo right; XXIII to left / Horseman galloping right, holding whip and reins; XXVII above. Crawford 340/1; Sydenham 660; Calpurnia 12b; RBW 1254 var. (controls). Iridescent toning. VF.

Ex Numismatica Ars Classica inventory TI N17184.