The "Codex Manesse", the most important singing manuscript of the Middle Ages and therefore one of the most precious books in the world, is exhibited in the national exhibition "The Emperors and the columns of their power".
barth has produced and delivered a display case in all-glass self-supporting, bullet-proof glass and with an alarm system for this particular book.
reportage TV, ZDF Germany - high-security transport from the Heidelberg library to the exhibition spaces in Mainz.
