Watch List notes:

The Roman Empire

Gaius augustus, 37 – 41. Aureus, Lugdunum 37-38, AV 7.79 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 10. BMC 1. RIC 1. Kent-Hirmer pl. 48, 165. CBN 1. Calicó 336.
Extremely rare. Two attractive portraits struck on a full flan, wonderful
light reddish tone and about extremely fine
Ex Numismatica Genevensis 3, 2004, 136 and NAC 51, 2009, 1777 sales. From the collection of a retired banker.