In Beirut, at the site of Bey 015 which was on the ancient Georges Haddad Street, excavations have revealed a complex of tank furnaces providing a unique archaeological evidence for primary production of Hellenistic glass. The tank furnaces in Beirut, produced highly coloured (green, amber, brown, yellow-brown) and nearly colourless (with green hues) raw glass. The site is situated in the eastern side of the Seleucid polis and the Roman colonia Julia Augusta Felix. The complex consists of three tank furnaces all of which date to before A.D. 50 and produced a vast amount of raw glass which then was transferred across the east Mediterranean lands for the secondary production (Henderson 2013 and references therein).