Richard Alden Griffin (June 18, 1944 - August 18, 1991) was an American artist and one of the leading designers of psychedelic posters in the 1960s. He was also a contributor to the underground comix movement whose work appeared regularly in Zap Comix. Griffin was closely identified with the Grateful Dead, having designed some of their best known posters and record jackets. He was also known for his work within the surfing subculture, … Wikipedia
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