"Dome - Masoud bin Davud" stone

To determine the period of construction of the Maiden Tower, one of reliable documents is 04x06 meter written stone located on outer side of the wall, above fortress door, on height of 14 meters. "Dome - Masoud bin Davud" words written on the stone. Later the deployment of inscription of Maiden Tower on the wall uneatly has also been identified. It was very roughly stuck on the part of the fortress wall covered with stone pipelines. Other researchers suppose that, these insciption mounded there after fortress built.