This Autographed w/ Bart & Lisa Simpson Sketch 22x31 Poster with the inscription of "Greetings Kids of Clyde 8-18-1993" has been Personally Signed by Matt Groening of The Simpsons. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website. This poster has some edgewear from age and handling. There are also some pieces of tape on the poster as well. Please refer to photos for item's condition prior to purchase.