Watch List notes:

KINGS OF SOPHENE. Arkathias II, circa 93/90-90/89 BC. Dichalkon (Bronze, 16 mm, 2.78 g, 12 h), with a countermark of Mithradates II, c. 89-85 BC, Arkathiokerta (?). Diademed head of Arkathias I to right, wearing bashlyk; behind head, countermark MIΘ in a rectangular indent (Kovacs 22). Rev. Club. ACV -. CSC -. Kovacs 32 (same dies, but with a retrograde countermark, Kovacs 23). Extremely rare, only the second known example. Boldly struck and with a brown patina. Very fine.
From the collection of Yerets' Kariatin, Switzerland.