Inlay: dancing man, Early Dynastic III, ca. 2600?2350 B.C., Mesopotamia, Nippur, Sumerian, Shell, 1.81 x 0.94 x 0.24 in. (4.6 x 2.39 x 0.61 cm), Shell-Ornaments, This curved plaque cut from a piece of shell is decorated with the incised image of a ba