Watch List notes:

Gaius (Caligula), 37-41. As (Copper, 29 mm, 11.76 g, 7 h), Rome, 37-38. C CAESAR AVG GERMANICVS PON M TR POT Bare head of Caius to left. Rev. VESTA / S-C Vesta seated left on ornamental throne with a back, holding patera and long scepter. RIC 38. Attractive brown surfaces, pleasant details; well centered on a broad flan. About very fine.

From a Swiss collection formed in the 1980ies.