The pre-concert 1st printing is on white vellum and measures 14 1/4" x 19 15/16". There is no number notation or union logo on this printing.
The 2nd printing is on slightly rougher vellum and adds "3(2)" to the lower left corner and union logo #72 to the right corner. Across the bottom margin is "(c) Family Dog '66. Exclusive franchise distributor: Lorin Gillette P.O. Box 15125, SF 94115 Ph. 863-7112 Printed by Double-H Press." It was printed after the concert and measures 14" x 20 1/16".
The post-concert 3rd printing drops the number, union logo #72 and credits from the 2nd printing. "No. 3-3" is in the lower right corner, and "(c) Family Dog Productions 1725 Washington St. San Francisco" is in the lower left corner. It measures 14 1/4" x 20 1/2".
When the Avalon Ballroom and Bill Graham's Fillmore Auditorium began to hold weekly dance concerts, Wilson was called upon to design the posters. He created psychedelic posters from February 1966 to May 1967, when disputes over money severed his connection with Graham. Wilson pioneered the psychedelic rock poster. Intended for a particular audience, "one that was tuned in to the psychedelic experience," his art, and especially the exaggerated freehand lettering, emerged from Wilson's own involvement with that experience and the psychedelic art of light shows.