Eye-Stone of King Hammurabi of Babylon
This eye-stone made from agate bears a short inscription dedicated to the god Šamaš by King Hammurabi (reigned 1792-1750 BCE), whose name appears in the third line. Hammurabi is best known for his Law Code, found at Susa and now housed in the Louvre Museum, which is the earliest known complete collection of laws in history. Šamaš is the Akkadian name of the god of the sun and of justice. (Source)
Old Babylonian, 18th-19th century BCE.