Watch List notes:

Gaius (Caligula). AD 37-41. Æ Sestertius (34.5mm, 28.17 g, 6h). Rome mint. Struck AD 37-38. C CAESAR AVG GERMANICVS PON M TR POT, laureate head left / S•P•Q•R/ P • P/ OB CIVES/ SERVATOS in four lines within oak wreath. RIC I 37. VF, green surfaces, minor pitting.