ELT secondary mirror blank during transport

Loading the still glowing hot cast ELT M2 ZERODUR® blank onto a truck trailer at SCHOTT melting facility in Mainz, Germany in May 2017. It was then transported at walking-pace through Mainz with a police and fire escort, and arrived safely at the SCHOTT annealing facility, ready to slowly cool and be shipped by boat to France for shaping and polishing.