Watch List notes:

Sextus Pompey, 42-40 BC. Denarius (Silver, 17 mm, 3.89 g, 1 h), military mint in Sicily. [...]PIVS. - IMP.ITER. Diademed and bearded head of Neptune to right, trident over his left shoulder. Rev. [...]AE MARIT EX S C (partially ligate) Naval trophy set on an anchor and supported by a trident; at base, two heads of Scylla. Crawford 511/2a. CRI 333. Sydenham 1347. Nicely toned. Struck on a short flan, otherwise, good very fine.

From the collection of W. F. Stoecklin, Amriswil, Switzerland, acquired from Hess AG in Luzern, and from the Haeberlin Collection, Cahn & Hess, Frankfurt, 17, July 1933, 2889.