Watch List notes:

Gaius (Caligula), with Agrippina Senior. AD 37-41. AR Denarius (19.5mm, 3.78 g, 6h). Lugdunum (Lyon) mint. Struck AD 40. Laureate head of Gaius (Caligula) right / Draped small bust of Agrippina right. RIC I 22 (Rome mint); Lyon 179; RSC 6. VF, toned, minor porosity and marks under tone.