British Museum group of stone reliefs from the excavations of Max von Oppenheim at Tell Halaf that was purchased in 1920. More material followed from the excavations of Max Mallowan at Chagar Bazar and Tell Brak in 1935–1938 and from Woolley at Alalakh in the years just before and after the Second World War. Mallowan returned with his wife Agatha Christie to carry out further digs at Nimrud in the postwar period which secured many important artefacts for the museum. The collection of Palestinian material was strengthened by the work of Kathleen Kenyon at Jericho in the 1950s and the acquisition in
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