The death mask really is a magnificent no knowledge of the finer points of Egyptian antiquities.   Made of solid gold and inlaid with semi-precious stones, it weighs 11 kilograms. Tutankhamun was an Egyptian pharaoh of the 18th dynasty (ruled c.1333 BC – 1323 BC in the conventional chronology), during the period of Egyptian history known as the New Kingdom. 

Mask of Tutankhamun's mummy, the popular icon for ancient Egypt at The Egyptian Museum.