Watch List notes:

Gaius (Caligula). AD 37-41. Æ Sestertius (35mm, 27.08 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. Good VF, green and red surfaces, patches of fill, some smoothing and tooling.