Lower grade key from 1966!!!! There is an extra staple added that as far as I can tell wasn't necessary. Heavy tanning and stains thru book along with other defects consistent with grade. Check out my other comics!!! The item "Fantastic Four #52 marvel 1966 silver age 3.0/gd/vg comic!1ST BLACK PANTHER" is in sale since Sunday, August 4, 2019. This item is in the category "Collectibles\Comics\Silver Age (1956-69)\Superhero\Fantastic Four". The seller is "renokid77" and is located in Sparks, Nevada. This item can be shipped to United States.