Watch List notes:

The Collection of Roman Republican Coins of a Student and his Mentor Part III

C. Calpurnius Piso L. f. Frugi. Denarius 67, AR 4.04 g. Laureate head of Apollo r.; behind, human foot. Rev. Horseman galloping r., carrying palm branch; above, B and below, C·PISO·L·F·FRVG. Babelon Calpurnia 24. Sydenham 850a. C. Hersh, NC 1976, 107. Crawford 408/1b.
Lovely iridescent tone and extremely fine
Ex Leu sale 17, 1977, Nicolas, 514.