CAIRO, EGYPT—A team of German and Egyptian experts is working together to repair the 3,300-year-old burial mask of Pharaoh Tutankhamun in a laboratory at the Egyptian Museum. A year ago, its beard was knocked off accidentally by a museum employee who was working on the museum’s lighting. The beard was then hastily reapplied with epoxy, which is non-soluble. The conservators are carefully scraping the epoxy off the mask with wooden sticks, and may need to warm up the glue to complete the job. They will reattach the beard after they have studied how it was originally joined to the mask. “We have some uncertainties now, we don’t know how deep the glue went inside the beard, and so we don’t know how long it will take to remove the beard,” Christian Eckmann, a lead specialist, told The Guardian. “We are using this chance to gain new information about the manufacture,” he added. For more, go to "Warrior Tut."