Watch List notes:

BITHYNIA, Nicaea. Claudius. 41-54 AD. Æ 20 (4.42 gm; 21 mm). Struck circa 50 AD. Pasidienus Firmus, Proconsul. Bare head right / Legend and monogram. RPC I 2048; Waddington, Recueil, 26. Nice brown patina. Choice EF. Rare, only 7 specimens recorded by RPC.