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Hb serp . Drawing of the Serpent Mound Archaeological sites in Ohio en Stepshep CommonsHelper Last Pantagruelist en File SD Serpent Mound Squier and Davis Plate XXXV File SD Serpent Mound Squier and Davis Plate XXXV gray crop File SD Serpent Mound Squier and Davis Plate XXXV graylevelscropped PDold original upload log page