I would like to summarize my findings when identifying the ANH Tuskens. I'm quite new in Krayt knowledge, please correct me if you find some errors in my findings. According to the recent Star Wars Costumes: The Original Trilogy, by Brandon Alinger, 2014, there were four Tusken masks made for ANH. I call them A, B, C and D. However only A, B, C were seen in the movie and D appeared later. In summary I and others (recently jtechlove) have found this from reference photos: A ANH: