Watch List notes:

ROMAN REPUBLIC. C. Piso L. F. Frugi Denarius 61 BC, Rome. Obv. Head of Apollo to the right, hair bound with fillet; bow behind. Rev. Horseman galloping to the right; C PISO L F FRVG below, I at exergue. RRC 408/1b; Hersh, NC 1976, 286. AR. - Nice AU
Ex. Numismatica Ars Classica auction 2, 21 February 1990, lot 373; Ex. Numismatica Ars Classica auction 6, 11-12 March 1993,
lot 272; Ex. Numismatica Ars Classica auction 63, 12 May 2012, lot 248.
Only three examples known in public collections.