WHAT IS CGC SIGNATURE SERIES? The CGC Signature Series label (yellow) is applied to comic books that have been signed by someone of significance to the comic, under the direct observation of a CGC employee or select CGC authorized witness. The signatures are then authenticated by CGC with the labels indicating who signed the book, the date it was signed, and in some cases the location of where it was signed. After the comic book or comic magazine is signed in the presence of a CGC employee or CGC authorized witness, the book is immediately submitted to CGC for grading and encapsulation in CGC's patented, tamper-evident holder, to become a treasured part of your collection. PLEASE CHECK O UT MY OTHER AUCTIONS.The item "Star Wars #25 IG-88 ACTION FIGURE VARIANT CGC SS signed by Bill Hargreaves RARE" is in sale since Monday, May 13, 2019. This item is in the category "Collectibles\Comics\Original Comic Art\Drawings, Sketches". The seller is "onestopcomic" and is located in Delray Beach, Florida. This item can be shipped worldwide.