A unique clay disk with stamped inscriptions in a spiral on each face of its 16 cm diameter, found in 1908 at Phaistos, Crete. It is made of baked clay and on either side is an inscription, which consists of signs impressed on the wet clay with a punch or stamp. The Phaistos disk is therefore the world's first "typewritten" document in the words of John Chadwick. There is a total of 242 signs arranged into 61 groups demarcated into boxes by lines. The signs appear to be written from the outer edge and spiral inwards in a clockwise direction. The disk come from a deposit dated c 1700 BC which makes it contemporary with the Linear A script. At this time however it appears to not be Linear A but may be an Anatolian script.