About the item:  

Green Lantern #195, signed by hand by Joe Staton (cover and interior art), Steve Englehart (issue writer), and Jose Luis Garcia Lopez (letters page illustration), and authenticated by CGC with a grade of 9.2.  First appearance of Guy Gardner as the new Green Lantern!  With Signature Series books a certified CGC witness actually observes the signing of the comic so there is no possibility of the real autograph being switched out with another.