St. Columba's Pillow CufflinkIn Iona Abbey museum, youll find a carved oval stone with this simple image of a ringed cross on it. This cross is known locally as St. Columbas Pillow, from an old story that St. Columba used a stone as a pillow and awoke one morning to find the image of a cross had appeared on it while he lay sleeping. This piece of jewellery is made from 100% recycled AgAIN silver which emits 2 3 less CO2 than mined silver. AgAIN Sterling Silver is top quality