Vintage ballpoint signature, "George Harrison," on the reverse of an off-white 4.25 x 3.25 dental appointment card. In fine condition. Accompanied by a certificate of authenticity from Tracks, as well as a letter of provenance from the original recipient, which reads, in part: "On November 2nd 1975 I attended a Ravi Shankar concert at the Royal Albert Hall, London. During the interval I went to the bar for a drink. Without any fuss or fanfare in walked George Harrison. No looking round to see if he had been recognized, just got a drink and stood in the middle of the room chatting to his friends. My legs almost gave way and, with knees trembling I went over, put my arm round his shoulder (!!) and asked him for his autograph. He turned, smiled at me and said 'yes, of course.' Such a wonderful man, and a moment I shall never forget."