Watch List notes:

Gaius Caligula. A.D. 37-41. Æ as (28 mm, 10.56 g, 6 h). Rome, A.D. 37/8. C CAESAR AVG GERMANICVS PON M TR POT, bare head of Caligula left / VESTA, S C across field, Vesta seated left, holding patera and scepter. RIC 38; BMC 46; BN 54. Deep brown patina, light smoothing in fields, Extremely fine.