Silver denarius of Q. Pomponius Musa, Rome, c.56 or 65 B.C.
No legend; Laureate head of Apollo r.; behind, flower.
Q POMPONI / MVSA; Erato r., holding lyre in l. hand and with r. hand striking it with plectrum.
Crawford 410/6; Sydenham 814; BMCRR Rome 3612; Babelon Pomponia 12
Note: For no apparent reason the Erato denarii are many times rarer than any of the other muses, and many major collections lack a specimen.
Picture credit: (Triton XIII), 5.1.2010, lot 281