The Standard of Ur, Sumerian artefact excavated from what had been the Royal Cemetery in the ancient city of Ur, dates from around 2600-2400 BC. Excavated by British archaeologist Sir Leonard Woolley in the 1920s. A hollow wooden box measuring 21.59 x 49.53 cm, inlaid with a mosaic of shell, red limestone and lapis lazuli. It is currently in a reconstructed state. The Standard of Ur has two main panels, 'Peace' and 'War'. War, here, is one of the earliest representations of a Sumerian army, engaged in what is believed to be a border skirmish and its aftermath.