"This medal is one of the oldest and most honored medals used by Catholics and due to the belief in its power against evil is also known as the \"devil-chasing medal\". As early as the 11th century, it may have initially had the form of Saint Benedict's cross, and was used by pope Leo IX More Information: http://en.wikipedia.org/wiki/Saint_Benedict_Medal Model # PDSX38A Metal: Sterling Silver 925 Stamp or Hallmark: 925 Style: Double Side Medal Diameter Size :20mm (3/4 inch) Finish: Silver Mate C St Benedict Cross, Pope Leo, Jesus Necklace, Benedict Medal, Saint Benedict, St Benedict, 11th Century, Necklace Sterling Silver, Silver 925