Gold death-mask known as the "Mask of Agamemnon".
Archeologists have found a gold "funeral mask" dating back more than 3,000 years ago.

According to local authorities, the mask was found in an ancient noble tomb in Zhengzhou, the capital of central China's Henan Province. 

Information on the gold mask
It measures 18.3 cm in length and 14.5 cm in width and weighs around 40 grams. "The size of the mask means it could basically cover the face of an average adult," Huang Fucheng, from the institute, said.

Resource: https://www.jpost.com/archaeology/article-717831