Black ink, I can have them signed in silver, gold, bronze. $3 extra per color change from black. So you'll need to lmk what color ink you want and I can customize the window placement for auto on each copy. It will be a 4 inch by 4 inch area he signs in.
Indy's Comic Pressing Submission Form - http://tinyurl.com/qxzzxgg
Indy's CGC Comic Gradings Master Thread - http://tinyurl.com/p45agbh