Watch List notes:

Caligula (AD 37-41), AR Denarius, Lugdunum, 40, laureate head right, C. CAESAR AVG PON M TR POT III COS III, rev. AGRIPPINA MAT C CAES AVG GERM, draped bust of Agrippina right (RIC 22; BMC 23; RSC 6), some minor pitting, and a few light scratches in reverse field, very fine.