On coins like this one the Eumeneians stressed their “Achaean” (colonist) origins; other issues show Hera of the Argives. There is a similar motif on coins of Tralles in Lydia, a city that claimed to be of Argive origin (though on these coins it is Silenus, not Eros, who is riding on the goat). Far from being mutually excluding Nietzschean opposites, Apollo and Dionysus were half-siblings, both were gods of music, and they shared a temple at Delphi. However, from a modern, (post-)Nietzschean perspective, the image of the gods of rationality and irrationality riding happily together, with Love as their driver, is delightful symbolism!
* Eumeneia in Phrygia, coins of Antoninus Pius with biga to l. (not illustrated) or to r.
Æ 25, 6 h, 9.95 g. Obv. AYTO KAIC ANTΩ[NEINOC]. Laureate, cuirassed bust r. with aegis Rev. EYMENEΩN AXA[IΩN]. As described above.
References: RPC IV, 1991; BMC 58; SNG Leypold 1539
Reference: RPC IV, 2966