Between 1930 and 1937 Frankfort and his team conducted extensive horizontal and vertical excavations on four mounds: Khafajah, Tell Asmar (ancient Eshnunna), Tell Agrab, and Ishchali.
The tablets illegally excavated from Ishchali are in many locations including the Lowie Museum of Anthropology at Berkeley, the Musée d'Art et d'Histoire in Geneva, Iraq Museum, Oriental Institute, and the Free Library of Philadelphia.