Konahrik - The Elder Scrolls V: Skyrim Wiki Guide - IGN
Skyrim - All Dragon Priest Mask Locations - eXputer.com
Just went through and collected all the Dragon Priest Mask and honestly feel pretty good about it. (For whatever reason when I placed the wooden mask it glitched out and didn't place) :
Skyrim Fan Makes Real-Life Staffs of Destruction and Dragon Priest Mask Out of Wood