The Jazz Fest poster, a visual institution begun in 1975 as a means of celebrating the event itself, has taken on a life of its own and become one of the most sought after examples of a popular artwork edition. One that has spawned its own collector market—a 1976 poster recently sold for over $1200 dollars (it originally retailed for $12 dollars, signed), and last year's poster signed by both the artist, Richard Thomas, and his subject, Fats Domino, sold for three times the original price wit...