Kudurru

A kudurru was a type of stone document used as a boundary stone and as a record of land grants to vassals by the Kassites and later dynasties in ancient Babylonia between the 16th and 7th centuries BC. The original kudurru would typically be stored in a temple while the person granted the land would be given a clay copy to use to confirm legal ownership. Kudurrus are often linked to what are usually called "ancient kudurrus", land grant stones from the third millennium (typically Sargonic and Ur III) which serve a similar purpose though the word kudurru did not emerge until the 2nd millennium (Middle Babylonian in fact).