Magness-Gardiner, Bonnie S.  “Seals, Mesopotamian,” The Anchor Bible Dictionary, 6 vols., New York: Doubleday, 1992, 5:1062-1064.

This is a two-page article on the stamp and cylinder seals of Mesopotamia.  The article reviews their manufacture and the history of the development and use of seals throughout the Mesopotamian culture from 4000 to about 900 B.C.  I was at first disappointed to discover that this was the only article in this highly acclaimed work on the subject of “seal” or “seals.”  There is however an article on “binding and loosing” and a section on jewelry that discusses the signet ring.