Mysia, Pergamon 133-67 BC Silver Tetradrachm (12.36g) Obverse: Shows a snake emerging from a within a cista Mystica with lid ajar, and ivy encircling around Cista (Was a basket used for housing sacred snakes in connection with the initiation ceremony into the cult of Bacchus) Reverse show a bow in case with two snakes, monogram to left, caduceus to right, above.