This issue is a variant of Zap Comix (Last Gasp, 1982 ? series) #13. There exist further variants.
Underground Comix are known for using different prices, covers (art or color variations) and/or interior content to distinguish between printings.
1st print has 2.95 USD cover. 2nd print has 3.95 USD cover. 3rd print has 4.95 cover.
Wrap-around cover image. Rick Griffin was originally scheduled to do this issue's cover. The surfing theme of course is intended as a tribute to him.
Dedicated to the Memory of Rick Griffin - Surfs Up! Jam sequence with characters from their respective creators.
Jam sequence with characters from their respective creators.