Gallienus AE 23.7 of Bithynium, Bithynia. 7.90 g.

POY LIK GALLHNOC C, laureate head right.
BIQYNIEWN ADRIANWN, Zeus seated left, holding patera and sceptre.

RecGen 72; Yapy Kredi Coll. 87

Image courtesy of 0. Tekin, "The Yapı Kredi Collection".