Epeiros, Ambrakia.
Late 2nd century BC. Æ17, 5.02 g. Head of river god Acheloos right / AMBPA bull butting left; in exergue: ΣΩ. Cf. SNG Copenhagen 26-8; BMC -; cf. SNG Evelpidis 1771. Dark green patina. Very rare variety, apparently unpublished. Nearly very fine.