Watch List notes:

The Roman Empire

Gaius, 37-41. Denarius, Lugdunum 37-38, AR 3.75 g. C CAESAR AVG GERM P M TR POT COS Bare head of Gaius r. Rev. Radiate head of Augustus or Tiberius r. between two stars. C 11. BMC 3. RIC 2. CBN 3.
Rare. Two finely engraved portraits and a lovely old cabinet tone,
almost invisible marks, otherwise about extremely fine

Ex Sternberg & Apparuti sale 19, 1987, 536.