Bithynia, Nicaea. Valerian I. A.D. 253-260. AE tetraassarion (24.3 mm, 8.40 g, 7 h). AYT OYAΛEPIANOC ΓAΛΛIHNOC OYAΛEPIANOC KAI CEBB, confronted radiate, draped and cuirassed busts of Valerian I and Gallienus; between them; radiate, draped and cuirassed bust of Valerian II right / MEΓICTΩN APICTΩN, NIKAIEΩN, three prize crowns, center one with two palms, others with single palm. Rec Gen 822; SNG Cop 537; SNG Hunterian 1104; BMC 148-9. aVF, minor surface roughness, clear centration dimple.