This is a 11x17 Poster that has been hand signed by Billy Idol & Steve Stevens. This item has been certified authentic by Beckett Authentication (BAS) and comes with their tamper-proof sticker. Beckett Authentication has recently changed their physical certificate card policy where they no longer match their tamper-proof sticker with a physical certificate. If the item features a Beckett Authenticated QR Code, the item does NOT come with a matching certificate. A certificate can be printed on Beckett's website for the matching authentication number.