Celtic Cross Letter Opener Letter Opener - Celtic Cross Letter Opener 6 1/2"/17.5cm Long The letter opener has a Celtic cross with interlaced design as the handle and is antique silver plated. The information enclosed describes about the crosses left by the Celts. Great for SCA Costume, Medieval Costume, Cavalier Costume, Renaissance Costume, SCA Musketeer Costume This design is also referred to as an Irish Cross, or as the Cross of Iona.