“…High alumina soda glasses are generally not found frequently, but they are recognized in assemblages such as 2 nd /1 st century BC-5 th century AD glass beads from Sri Lanka and South India (Dussubieux, Gratuze, & Blet-Lemarquand, 2010, tab. 4;Dussubieux & Gratuze, 2013;Carter, 2016) which were present in Early Roman Quseir, Egypt (Then-Obłuska & Dussubieux, 2016) and during Early Byzantine period in Europe (Poulain, Scuiller, & Gratuze, 2013;Pion & Gratuze 2016); 4 th -6 th century AD glass beads from upper Nubia in Africa (Then-Obłuska, Wagner, & Kepa-Linowska, 2019); 7 th -8 th century AD Asian glass beads imported to Scandinavia and north Germany (Sode, Gratuze, & Lankton, 2017); 7 th -10 th century AD in Zanzibar (Wood, Panighello, Orsega, Robertshaw, van Elteren Crowther, Horton, & Boivin, 2017); 8 th -12 th century AD glass bracelets from Ḥiṣn al-Tīnātand in Turkey (Swan, Rehren, Dussubieux, & Eger, 2018). Few red opaque glass beads of Asian production found in Scandinavia and northern Germany (defined as group 4) show the most similarity with USTRA-01 as both calcium and aluminum values are around 10 wt% (Sode et al, 2017, Figure 5).…”