Here we have a signed index card from Mark Berry. As you can see from the scan, this card has been clearly signed in black sharpie.
Each item we sell at Behind The Scenes Limited is tagged with our official COA (certificate of authenticity), and assigned a 7 digit security code and then linked with the buyers surname. You can then enter both sets of details into our database at anytime to view the item and the authenticity. All relevant details to this item including any date and location of signing, photo or video proof will also remain.