World's Oldest Mask

Purportedly the world's oldest mask is set to go to auction on June 8th at Christie's. This Judean Desert Limestone Mask is circa 7th Millennium B.C.

Here's the auction house description:
A JUDEAN DESERT LIMESTONE MASK
PRE-POTTERY NEOLITHIC B, CIRCA 7TH MILLENNIUM B.C.
Fashioned to resemble a human skull, oval in form with thick walls, the reverse concave, the cut-out eyes with narrow ridges extending up from their outer corners over the temples, raised cheekbones below with a ridge extending back, the slender triangular nose with two grooves for the nostrils, the lipless oval mouth open, revealing teeth, with five biconical drill holes along the perimeter
9 in. (22.8 cm.) long