Prusias I, King of Bithynia. AE38. 230-187 BC. 41.56 g. Head of Hermes right, wearing petasos, countermark of caduceus behind head. BASILEWS PROYSIOY, lyre with five strings and elaborate resonator. RY, MH monogram and TRS monogram below. RecGen 21; SNG Ashmolean 447-448; Hoover HGC 628. With permission of Numismatik Naumann auction 65, Lot 112, May 2018.