Watch List notes:

Q. Pomponius Musa. Denarius, 66 BC. Obv. Laureate head of Apollo right; behind, tortoise. Rev. Terpsichore right, holding lyre and plectrum with right hand lowered; on left, Q·POMPONI; on right, MVSA. Cr. 410/7c; B. (Pomponia) 18; AAA 393.7b. AR. 3.87 g. 18.00 mm. R. Countermark on obverse. About EF.