Bithynia, Nikomedia, Gallienus. Ae 24 mm. 8.0 gm. Obv: ΠΟ ΛΙ ΕΓΝ ΓΑΛΛΗΝΟϹ ΑΥΓ; radiate (?), draped and cuirassed bust of Gallienus, right, seen from rear. Countermark. Rev: ΝΙΚΟΜΗΔΕΩΝ ΔΙϹ ΝΕΩΚΟΡΩΝ; emperor, radiate, riding on galloping horse right, spearing enemy. RPC X, — (unassigned; ID 86569) (1 specimen). VeryRare. This is the second known example.