Proto-Dynastic period : Cylinder seals and impressions, end of the 4th millennium BC

Upper row left : Cylinder seals in chip-carving style, bracite, 4.7 cm high (British Museum)geometrical pattern of sharply carved linesquatrefoils and tree-like stylised trianglesempty parts on upper edge filled in with circles hollowed out with drill-like instrument. Upper row right : Scapolite seals in Brocade Style, typical of late proto-dynastic periodthe bodies of quadrupeds consist of 2 opposed curved lines, engraved with chisel onlyornaments are evenly distributed all over the seal surface. Central row left : Calcite, 6.5 cm highengraved quatrefoil pattern interpsersed with circles. Central row right : Reddish marble, 1.7 cm highspider pattern, hollowed out mainly with drill, is fairly common and should be dated to end of Early sumerian or beginning of proto-dynastic. Bottom row : Haematite, 7 cm highmore massive animal bodies than on previous one