This limited-edition poster is numbered 273/350 and SIGNED by the artist, the late Alton Kelley! Chet Helms is the patron Saint of Haight Ashbury. He was one of the pioneers of the San Francisco psychedelic scene and was instrumental in creating the 1960s counterculture. As the guiding force behind the Family Dog he helped create some of the finest poster art of the era. According to all accounts he was a very fine gentleman and was well loved by musicians and audiences alike. PERFORMERS: Greg Allman, Steve Miller, And An Assortment Of 60S Psychedelic Era Luminaries ; hand signed by Alton Kelley - 29 1/2" X 19 3/4"