542. Pergamon. Circa 166-160 BC. AR Cistophoric Tetradrachm (12.56 gm). Cista mystica with serpent; all within ivy wreath / Bow-case with serpents; dolphin above a monogram to the right. Kleiner-Noe Series 3, 4-d (same dies). Fine. Rare. ($100) CNG Mail bid sale #58, 18 Sept 2001, lot 542. Lot sold for $95. Used by permission of CNG, www.historicalcoins.com