Beatles Signed Advertising Artist's Proof (1964).  An 11.25" x 8.5" board bearing a camera-ready mockup of an advertisement for Förstärkbolaget AB Hi-Fi systems which was designed to appear in a Swedish show business journal. It has been signed by the Beatles in blue ballpoint pen: "John Lennon," "Paul McCartney," and "Ringo Starr" have signed on the actual advertisement. The "George Harrison" autograph may have signed on a different sheet of the same type paper and then his signature has been attached to the proof during the design process. The designer has also added some correction fluid near George's signature so that the finished production would have appeared cleaner when published. This company provided the Hi Fi equipment to the Johanneshovs Isstadion, Stockholm, Sweden when the Beatles performed there on July 28 - 29, 1964. The autographs come with a detailed signed letter from the daughter of the company director who gave the proof to her. Full transcript on our website. Excellent. COA from Heritage Auctions.