This barrel-shaped cylinder of clay is inscribed with a commemorative text that records the repair of the city wall of Babylon by Nabopolassar. In the text, Nabopolassar invokes his own name as king of Babylon, describes the weakening and settling of the Great Wall of Babylon on its original base, and his repair and rebuilding of the foundation wall which "like a mountain its summit I verily raised... Oh, Wall! Remind Marduk, my lord [patron god of Babylon] of the favor." Kings and officials commonly deposited inscribed tablets of this shape into recesses built below or within new or repaired constructions in Mesopotamia. Their deposit sanctified and protected the construction as well as allowing the king or official to record his name and deeds for the gods and posterity.