This is a 16x20 Photo that has been hand signed by Damian Lillard. This shot is of Lillard's game winning 3 point buzzer beater against Paul George and the Los Angeles Clippers. This item has been witnessed and certified authentic by Beckett Authentication (BAS) and comes with their tamper-proof witness sticker. Beckett Authentication has recently changed their physical certificate card policy where they no longer match their tamper-proof sticker with a physical certificate. A certificate can be printed on Beckett's website for the matching authentication number.