ITEM FOR SALE: INSANELY RARE IN STORE PROMOTIONAL SIGN POSTER AUTOGRAPHED BY MARK HOPPUS WHO WROTE “MIX IT UP BIT”, TRAVIS BARKER WHO SKETCHED THE BLINK 182 LOGO AND WROTE “MY LOVER, MY MIX IS COOL” AND TOM DELONGE WHO WROTE “I LOVE YOU AND YOUR BALLS, THANX FOR THE GREAT SOUNDS”. COA: ALL OF THE ITEMS THAT WE SELL COME WITH A CERTIFICATE OF AUTHENTICITY. IF YOU HAVE ANY DOUBT BEFORE PURCHASING AN ITEM PSA HAS A QUICK OPINION ONLINE SERVICE WHICH ALLOWS YOU TO GET A THIRD PARTY OPINION OF AN ITEMS AUTHENTICTY. WE ENCOURAGE THAT YOU UTILIZE THIS SERVICE IF YOU ARE HAVING ANY DOUBTS.