Watch List notes:

Gaius (Caligula), 37-41. Quadrans (Copper, 18 mm, 3.11 g, 7 h), Rome, 40-41. C CAESAR DIVI AVG PRON AVG around pileus flanked by large S C. Rev. PON M TR P IIII P P COS TERT around R C C. BMC 64. Cohen 7. RIC² 52. Well struck and clear with a lovely olive green patina. Nearly extremely fine.