Watch List notes:

Thracian Kingdom. Rhoemetalces III, with Gaius (Caligula). ca. A.D. 38-46. 20.21 mm, 6.02 g, 6 h). Struck ca. A.D. 38-41. ΓΑΙΩ ΚΑΙΣΑΡΙ, laureate head of Gaius (Caligula) right / ΒΑΣΙΛΕΩΣ, Nike advancing right, holding wreath and palm. RPC I 1725. Fine.