Watch List notes:

Sextus Pompey AR Denarius. Uncertain mint in Sicily (Catania?), 42-40 BC. MAG PIVS IMP ITER, diademed and bearded head of Neptune right; trident over left shoulder / Naval trophy set on anchor, top of trident visible above helmet; the arms composed of the stem of a prow in right and aplustre in left; two heads of Scylla at base; PRAEF CLAS ET ORAE MARIT EX S C around. Crawford 511/2a; CRI 333; BMCRR Sicily 15; RSC 1a. 3.85g, 20mm, 12h.

About Good Very Fine.

Ex UBS Gold & Numismatics, Auction 78, 9 September 2008, lot 1163, there noted as "ex Platt".