This is a Star Wars full mask from 20th Century Fox, 1977. The character is C-3PO. That information is not printed on the mask but rather it’s carved into the mask. I found no other information. The color of the mask is olive or bronze like. The inside color is a shiny brown and appears to be rubber or flexible vinyl. The main defect would be the split that is above the small circle and below the large circle in the middle of the back of the mask. It’s an inch long. I’ve seen this in other C-3PO masks but not all. Some heads must just be too big. The mask is used and has a few scratches including an inch long one above the forehead on the left hand side. I put a crystal water bottle inside the mask to take better photos. Thanks.
eBay