The boy king's death mask is a top attraction at the museum, which has hundreds of items from the tomb found in 1922 by British archaeologist Howard Carter along with the pharaoh's mummy in Luxor's Valley of the Kings. The process included warming the mask to enable the adhesive to be removed. We did it by mechanical means, using wooden tools,' Eckmann said. 'The most challenging process was to remove the beard. The restoration included a 3D scan of the mask and removing the beard once more. In a hurried attempt to fix it, museum workers applied too much epoxy glue, leaving a visible crust. The accident happened when the mask was removed from its display case to repair the lighting. The beard fell off the boy pharaoh's funerary mask in August 2014 at the Egyptian Museum in Cairo, and employees tried to reattach it with glue. 'It is done,' Christian Eckmann, a German specialist in restoration work on antiquities in glass and metal, told reporters at a press conference. The restored mask - now back in its display case at the museum - was shown to journalists after more than two months of work by a team of German experts. Egypt put the restored gold mask of Tutankhamun back on display on Wednesday after German experts removed glue applied in a botched repair when the priceless artefact's beard fell off.