Here’s your chance to get a one of a kind color proof for some Topps series 3 ESB card backs. These came directly from the stoops Vault. I’m selling them for my brother, but they are in hand at my house. Looking for $35 shipped (domestic US, international at cost) or 2 for $60. The back is blank and the proof is made up of multiple layers put together. They are sealed in a hard case with Topps Vault sticker and come with a COA and original released card. The proofs are much brighter than the production cards (see last picture for comparison). Thanks for looking!