Watch List notes:

Gaius Caligula. A.D. 37-41. AE as (29.5 mm, 9.76 g, 7 h). Rome mint, Struck A.D. 37-38. C CAESAR AVG GERMANICVS PON M TR POT, bare head left / VESTA, S-C, Vesta seated left, holding patera and scepter. RIC 38; BMCRE 46. aVF, light porosity.