Watch List notes:

Gaius Caligula. A.D. 37-41. Æ as (27.6 mm, 10.72 g, 7 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 sceptre. RIC 54; BMCRE 72. Fine.