Watch List notes:

Gaius (Caligula). AD 37-41. Æ Sestertius (35mm, 25.47 g, 5h). Rome mint. Struck AD 37-38. Laureate head left / S P Q R/ P • P/ OB CIVES/ SERVATOS in four lines within oak wreath. RIC I 37. Near VF, rough green patina.

Ex Classical Numismatic Group Electronic Auction 227 (10 February 2010), lot 446.