The Walking Dead Volume 4 Omnibus SIGNED 2x! This is a brand new slipcased The Walking Dead Volume 4 Omnibus. Robert Kirkman has SIGNED this copy 2 times; on the full title page of the book & on the outside of the slipcase of the book. I will include a picture of Robert Kirkman from the signing event. Please feel free to check out the other items in my store.Add a map to your own listings. The item "SIGNED 2x The Walking Dead Omnibus Volume 4 by Robert Kirkman Slipcase + PHOTO" is in sale since Thursday, April 25, 2013. This item is in the category "Books\Nonfiction". The seller is "bookcrypt" and is located in La Puente, California. This item can be shipped worldwide.