The object here published (Plate VI) is a heavy lump of grey stone (diorite or basalt) measuring 40 × 34 × 13 cm, roughly shaped to form a gate socket, and carrying an inscription of Ur-nammu which is apparently hitherto unattested. The owner, who inherited it from her father, reported it to the Keeper of the Department of Antiquities at the Ashmolean Museum, Oxford, in 1978, and at his suggestion the present writer took a photographer from the Museum to inspect the object at her home, where the photographs here published were made. The owner's father, then resident in Baghdad, received the stone as a present from the Turkish Governor of Baghdad in 1918 when he was about to surrender the city to the British forces, but nothing is known of its previous history. It is at present in the Ashmolean Museum on temporary loan.