Watch List notes:

SPAIN, Carthago Nova. Gaius (Caligula), with Caesonia. AD 37-41. Æ (28mm, 12.63 g, 7h). Cn. Atellius Flaccus and Cn. Pompeius Flaccus, duoviri. Laureate head of Caligula right / Draped bust of Caesonia, as Salus, right. ACIP 3155; RPC I 185. Brown patina. Fine.