A little unconventional – in fact, bizarre! Such an important and well-known artefact surely cannot be treated in such a way. What a mess! It seems the botched repair took place last August - and was not done in the conservation lab. It doesn't make sense.
Apparently, one 'conservators' present at the repair admitted that glue was ‘inappropriate’, and that the damage was ‘irreversible’. Clearly there is a gap between the face and the beard, with a layer of yellow glue showing!
According to the BBC:
The blue and gold braided beard on the burial mask of pharaoh Tutankhamun has been hastily glued back on after it was damaged, museum employees say.
But conservators at the Egyptian Museum in Cairo gave differing accounts of the exact circumstances.
Call me to discuss your insurance needs on 0208 2550617 / 07768 865983