Watch List notes:

Gaius (Caligula), 37-41. Quadrans (Copper, 18 mm, 3.46 g, 6 h), Rome, 39-40. C•CAESAR•DIV AVG PRO•N• AVG• Pileus between S - C. Rev. COS•TERT•PON M TR•P•III•P•P• around R•CC. BMC 63. Cohen 6. RIC 45. Good very fine.