Nimrud ivories that followed the death of Sargon II in 705 BC or when Nineveh fell and was destroyed in 612 BC. Mallowan's wife was the famous British crime novelist, Agatha Christie (1890–1976), who was fascinated with archaeology, and who accompanied her husband on the Nimrud excavations. Christie helped photograph and preserve many of the ivories found during the excavations, explaining in her autobiography that she cleaned the ivories using a fine knitting needle, an orange stick and a pot of face cream. The collection of ivories uncovered by Mallowan were divided between Iraq and Britain, where they remained at the British
Nimrud assigned to Nabu, the god of writing and the arts, and as extensive fortifications. Nimrud has been one of the main sources of Assyrian sculpture, including the famous palace reliefs. Layard discovered more than half a dozen pairs of colossal guardian figures guarding palace entrances and doorways. These are "lamassu", statues with a male human head, the body of a lion or bull, and wings. They have heads carved in the round, but the body at the side is in relief. They weigh up to . In 1847 Layard brought two of the colossi weighing each including one lion and