Restoring Old Masterpieces

How do you deal with a manuscript that’s so fragile you can’t touch it, or an old canvas that needs touching up?

Restoring old master pictures and preserving old manuscripts requires knowledge of the latest scientific techniques. But it can still be a highly controversial activity, especially when it comes to famous canvases and frescoes. With Ed Kessler to compare notes are Ilaria Bernocchi and Suzanne Paul.