The 1st printing poster is dark pine green and purple. The band names and ticket outlet information is in black ink. It was printed before the concert and is skinnier than the 1st printing B, measuring 12 1/4" x 20".

The 2nd printing is lighter, brighter green and purple and has the band names and ticket outlet information in brown. This poster is wider, measuring 14" x 20" and was also printed before concert.

Born in Detroit, Stanley Miller became known as "Mouse" after illustrating countless notebooks with his signature rodent sketch. Miller found an outlet for his creativity in pin-striping cars and airbrushing hot rod designs on posters and T-shirts. Mouse migrated to San Francisco in 1964, where he first met the artists associated with Family Dog, the organization producing dance concerts at the Avalon Ballroom. With collaborator Alton Kelley, Mouse experimented broadly with composition, lettering and imagery: Kelley came up with the ideas and Mouse executed the designs. Mouse and Kelley helped to establish the psychedelic style of expression under the name Mouse Studios.