PEGASI Mysia Pergamon AR Cistophoric 4 Drachm $60.00 Mar-19-01 Seller: pegasinum MYSIA, Pergamon. 123-67 BC. AR Cistophoric Tetradrachm (12.48 g). Cysta mystica Serpents around bow-case. Kleiner 4; BMC.101v. [Est $95] Pegasi Numismatics