Watch List notes:

ROMAN EMPIRE: Caligula, 37-41 AD, AE as (10.44g), Rome, S-1812, in honor of his grandfather Agrippa (d. 12 BC): head of Agrippa left, wearing rostal crown // S C either side of Neptune standing, holding dolphin & trident, some light porosity, carefully conserved, VF.

Estimate: 160-200 USD