Watch List notes:

P. Plautius Hypsaeus. 57 B.C. AR denarius (17 mm, 3.85 g, 3 h). Rome mint. [P · YPSEV]S · C, diademed and draped bust of Leuconoë right; dolphin behind / C · YPSAE · COS ·/ PRIV in two lines in exergue, Jupiter driving quadriga left, holding reins and thunderbolt. Crawford 420/2a; Sydenham 911; RSC Plautia 12.