Keywords: Silver tetradrachm Athens new style obverse.jpg Head of Athena with a crested helmet Silver tetradrachm from Athens new style ca 200-150 BC obverse Tête d'Athéna portant un casque à cimier Tétradrachme d'argent athénien du « nouveau style » v 200-150 av J -C droit Museum Cabinet des Médailles object history credit line accession number Marie-Lan Nguyen User Jastrow 2008-04-04 other versions <gallery> Image Silver tetradrachm Athens new style reverse jpg Reverse owl standing on an amphora </gallery> User Jastrow/CreditsPD Athenian tetradrachm Ancient Greek coins in the Cabinet des médailles Paris Coins of the 2nd century BC Athena on coins Military helmets on coins Athene Obverses Attic helmets |