We all know these high grade classic issues are coveted and prized by collectors, as GPA in many cases doesn't even apply because of added interest or sudden popularity of a character. And in this book's case, Stan Lee isn't signing any more.The item "CGC 9.4 Tales to Astonish # 93 (7/67) Hulk Silver Surfer Stan Lee signed 4/23/17" is in sale since Saturday, August 31, 2019. This item is in the category "Collectibles\Comic Books & Memorabilia\Comics\Comics & Graphic Novels". The seller is "melissab0715" and is located in El Reno, Oklahoma. This item can be shipped worldwide.