544. Pergamon. Circa 160-150 BC. AR Cistophoric Tetradrachm (12.56 gm). Cista mystica with serpent; all within ivy wreath / Bow-case with serpents; owl standing on grape bunch to the right. Kleiner-Noe Series -; BMC 88. CNG Mail bid sale #58, 18 Sept 2001, lot 544. Used by permission of CNG, www.historicalcoins.com