Early-Islamic Glass (IMAGE) Johannes Gutenberg Universitaet Mainz Caption Early-Islamic glass weight of just 12 millimeters in diameter with an Arabic inscription found at Khirbat al-Minya Credit photo/©: Dr. Volker Grünewald, Department of Ancient Studies, JGU Usage Restrictions This image may only be used in connection with the press release "New findings on the history of the early-Islamic caliphate palace Khirbat al-Minya," issued by Johannes Gutenberg University Mainz on October 21, 2016. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.