Watch List notes:

KINGS OF THRACE. Rhoemetalkes III, circa AD 38-46. (Bronze, 22 mm, 9.39 g, 6 h), with Gaius Caligula, uncertain mint in Thrace, c. 38-43 (?). ΓΑΙΩ ΚΑΙΣΑΡΙ Laureate head of Gaius Caligula to left. Rev. ΒΑΣΙΛΕΩΣ Nike standing right, holding wreath in right hand and palm in left. AJC p. 278, 2. RPC I 1725. Very rare. Dark green patina. Cleaning scratches, otherwise, very fine.