Palmateer had this mask custom made for his appearance in the 2017 Toronto Maple Leafs Centennial Classic Alumni Game. The mask was made in the same style as the one he wore when first played with the Leafs in the 1970s. When talking about the construction, Palmateer says “The mask was made of fibreglass and moulded to my face- there was zero padding!”
To see a picture of Palmateer wearing the mask please see artifact SH2017.4.21.