Cylinder Seals
From the tomb of Queen Puabi (PG 800). Ur (present-day Muqaiyir, Iraq). c. 2600-2500 BCE. Lapis lazuri, height 1 9/9/16″ (4 centimeters). University of Pennsylvania Museum of Archaeology and Anthropology, Philadelphia.
Recommended Reading
Khan Academy Article
BBC News Article
Museum of Lost Objects: Looted Sumerian Seal
Ancient History Encyclopedia Article
Cylinder Seals in Ancient Mesopotamia – Their History and Significance
Additional Material
Ancient Code Article
This Ancient Sumerian Cylinder Seal is said to depict 12 planets in our Solar System
Getty Museum