A “Persian Gulf” Seal on an Old Babylonian Mercantile Agreement. 1. A Mercantile Agreement from the Reign of Gungunum of Larsa (by W. W. Hallo); 2. A Dated “Persian Gulf” Seal and its Implications (by B. Buchanan) - Hallo, William W. (, Studies in honor of Benno Landsberger on his seventy-fifth birthday, april 21, 1965, 1965)