Watch List notes:

BITHYNIA. Nicaea. Gallienus, 253-268. (Bronze, 25 mm, 8.93 g, 1 h). AY Π ΛIK ΓAΛΛIHNOC CEB Radiate head of Gallienus to right; countermark of H on neck. Rev. NIKAIEΩN Tyche standing left, holding cornucopia and rudder; three agonistic crowns containing across the fields. RG pl. 87, 41. for countermark cf. SNG von Aulock 714, 716. Very rare variety absent from many major collections as Copenhagen and von Aulock. Very fine.