Watch List notes:

Thracian Kingdom. Rhoemetalkes III. Ca. A.D. 38-46. Æ (18 mm, 5.36 g, 6 h). Under Gaius Caligula. [ΓΑΙΩ ΚΑΙΣ-ΑΡΙ], laureate head of Caligula left / ΒΑΣΙΛΕΩΣ (retrograde), eagle standing facing, head left. RPC 1726. Very rare - none on CoinArchives or ACSearch! Cleaned brown surfaces.