Watch List notes:

L. Mussidius Longus, Denarius, Rome, 42 BC; AR (g 3,54; mm 18; h 5); Radiate and draped bust of Sol facing, Rv. Shrine of Venus Cloacina, inscribed CLOACIN; above, L. MVSSIDIVS LONGVS. Crawford 494/43a; Mussidia 7; Sydenham 1094.
Rare. Minor flattening on edge, anyway about extremely fine / extremely fine.