Daniela Rosenow gained her PhD in Egyptology from the Humboldt-University Berlin in 2008. Since 2017 she has been employed as an academic research fellow at the German Archaeological Institute Cairo and responsible for excavations at Dahshur. Her research interests include Late Period and Greco-Roman Egypt with a specialisation in ancient glass. Matt Phelps completed a Physical Sciences degree at UCL in 2007. After a placement at the Research Laboratory with English Heritage, he went on to do a Doctorate at the Institute of Archaeology, UCL. His research interests lie in glass production, provenance and technology, particularly during the Roman, Byzantine and Islamic periods. Andrew Meek is a scientist in the Department of Scientific Research at the British Museum. His specialism is the analysis of vitreous materials. He is a board member of the Early Glass Technology Research Network and The Association for the History of Glass, and co-editor of Glass News. Ian Freestone is an archaeological scientist in the Institute of Archaeology, UCL. He joined UCL in 2011 as Professor of Archaeological Materials and Technology and manages the Wolfson materials science laboratories. He has conducted research on artefacts from all over the world, from the Neolithic to the early modern periods.