BITHYNIA. Nicaea. Valerian I, with Gallienus and Valerian II Caesar, 253-260. Tetrassarion (25mm, 9.0 g), 256-258. AYT OYAΛEPIANOC / ΓAΛIHNOC (sic!) / OYAΛEPI/ANOC K / CEB[BB] Radiate, draped and cuirassed busts of Valerian I and Valerian II, on the left, facing radiate, draped and cuirassed bust of Gallienus, on the right. Rev. MEΓICTΩN APICTΩN / NIKAIEΩN Three agonistic crowns, the outer two each containing a single palm frond, the central containing two.