Watch List notes:

MOESIA. Istros. Circa 313-280 BC. Drachm (Silver, 16 mm, 5.64 g, 7 h). Facing male heads, the right inverted. Rev. ΙΣΤΡΙΗ Sea eagle standing left on dolphin; below, AΠ monogram. Dima Group IV, Subgroup IV. HGC 3 1802. SNG Black Sea 247-248. Old cabinet dark tone. About very fine.

From an old Swiss collection formed way before the 1990ies.