I actually couldn't see why the grade is so low until I finally saw it: a small linear scratch on Storm's left shoulder. If not for that, this should be at least a 9.4 or more IMO. That being said, I think this is one of the best examples for the grade you will ever see. Feel free to ask questions and good luck! Also feel free to visit my IG page of the same name to look at all my inventory, including several GSX1s.
The item "GIANT SIZE X-MEN #1 CGC 8.5 Bronze Age KEY 1975 Comic Book GSX 1 WHITE PAGES" is in sale since Monday, March 1, 2021. This item is in the category "Collectibles\Comics\Bronze Age (1970-83)\Superhero\X-Men". The seller is "thefinerthingsgroup" and is located in Pasadena, California. This item can be shipped to United States.