Mionnet (Supplement III, 414) describes a coin of Severus Alexander from Dium, but with an obverse inscription not listed in Varbanov. I suggest that (if the coin is indeed from Dium) this is probably a misreading of a worn coin with the well-known reverse type of Asclepius in a temple.
The Koinon of Bithynia coin (of Hadrian) is in Waddington, Recueil général, 42, and purportedly shows two statues above the pediment of an octostyle temple: a winged figure (Eros?), on the left, pursuing a naked figure, on the right. The coin is not illustrated, and is described as having been seen “in trade”. Its existence has not been confirmed by RPC III.