Bill Graham loved Latin dance music, and the beat of Brazilian jazz guitarist Bola Sete proved to be enormously popular for the Fillmore crowd too, at this three night gig. Country Joe & the Fish and Buffalo Springfield swirl and pool around Wilson's female nude as she parts the stage curtain.
There are three variations of this handbill, differentiated by the size and placement of "Presented in San Francisco by Bill Graham" in the top margin. All three varieties have substantial ink prints on their reverse, and all varieties vary slightly in the shade and tone of their colors. All were printed before the concert.
1st printing A has larger lettering, and shows the distance from the left edge of the bottom of the "P" to the right edge of the bottom of the "M" as 3 3/8". The "P" in "Presented" is located above the gap between the "B" and the "O" in "Bola". There is a granular look to the inking and the purple in particular. It measures 4 3/4" x 8 1/4".
1st printing B has smaller lettering, and the distance between the "P" and "M" is 2 15/16". On some copies of the B printing, the "P" in "Presented" is well to the right of the gap between the "B" and "O" in "Bola". It measures 4 13/16" x 8 1/4".
1st printing C also displays the smaller lettering, but on this version, the "P" in "Presented" is slightly to the left of the gap between the "B" and "O" in "Bola". There is a 3/16" triangular printing flaw at the ridge of the lower shoulder of the figure in the image. It measures 4 3/4" x 8 1/4".
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.