Watch List notes:

Bithynian Kingdom, Pergamon. Prusias I Chloros or Prusias II Cynegos. 238-183 B.C. or 182-149 B.C. AE 19 (19.20 mm, 4.01 g, 1 h). Head of young Dionysos right, wreathed with ivy / [BA]ΣIΛEΩΣ - [ΠP]OYΣIOY, titles vertically downwards to right and left of the centaur Chiron standing right, playing lyre. Rec. Gen. 26; BMC 210, 9; SNG Cop 637; Von Aulock 256 var. . Near VF / VF, thick, dark green patina, a bit rough on obverse, much edge chipping (plowsoil recovery?) but does not affect devices.