The publication of ZAP COMIX #12 was celebrated at the Psychedelic Solution Gallery in New York June 7, 1989. All seven artists attended the reception, and all of the artwork of the issue was displayed in the gallery. The artists are Rick Griffin, R. Crumb, Victor Moscoso, Gilbert Shelton, Spain, Robert Williams, and S Clay Wilson. This was the last Zap that included art of Rick Griffin. The two postcards reproduce the two page spread "Zap Jam" in which all of the artists collaborated. cards are 7" x 5" with postcard back, return address of Psychedelic Solution.