Watch List notes:

Gaius Caligula. A.D. 37-41. Æ as (29.2 mm, 9.56 g, 5 h). Rome mint, A.D. 40-41. C CAESAR DIVI AVG PRON AVG P M TR P IIII P P, bare head left / VESTA, S-C, Vesta seated left, holding patera and scepter. RIC 54; BMCRE 72. Fine, black patina with blue highlights.