Gaius (Caligula). AD 37-41. AR Denarius (18mm, 3.68 g, 12h). Lugdunum (Lyon) mint. Struck AD 40. Laureate head right / S • P • Q • R •/P • P/OB • C • S • in three lines within oak wreath. RIC I 28 (Rome); Lyon 183 (unlisted dies); RSC 21. Toned, obverse slightly struck off center. VF. Rare.
From the John L. Cowan Collection, purchased from Dr. Arnold Saslow, 11 September 1997.