Corbyn S Kern Virgin Variant. Signed By Michael J Fox, Christopher Lloyd, Lea Thompson and Bob Gale. The item "CGC 9.9 Back to the Future 1 Comic Book Virgin Variant Signature Series SS X4" is in sale since Wednesday, June 23, 2021. This item is in the category "Collectibles\Comic Books & Memorabilia\Comics\Comics & Graphic Novels". The seller is "phillylovescomics" and is located in Philadelphia, Pennsylvania.This item can be shipped to United States.