Unknown Sumerian, ‘Stele of Ushumgal’, 2900–2700 B.C., The Metropolitan Museum of Art

Early Dynastic I; Mesopotamia, probably from Umma (modern Jokha)
http://www.metmuseum.org/art/collection/search/329079

Image rights: The Metropolitan Museum of Art (Funds from various donors, 1958), licensed under CC0 1.0 Universal

About Unknown Sumerian