Watch List notes:

BITHYNIA, Nicaea. Antoninus Pius, with Marcus Aurelius as Caesar. AD 138-161. Æ (27mm, 14.13 g, 6h). Laureate bust of Antoninus Pius right / Marcus Aurelius on horse rearing right, holding spear. RG 121 = RPC Online temp. no. 5905. VF, dark brown surfaces, some roughness. Extremely rare – third and finest known.