Original 1966 poster used to promote a benefit concert for LEMAR, the organization that promoted the legalization of Marijuana in the Bay area. Poster featured Country Joe and the Fish, and The Only Alternative and His Other Possibilities.California Hall, Dec. 17, 1966. Artwork by Tom Weller. Listed in the Art of Rock book with Catalog No. AOR-2.146. This is an original first printing poster, printed on oversized vellum paper. There are also some ink smearing spots andspeckled spots which is part of the original printing of this poster. Approx. 17.5" x 22.5". Bottom center edge has a Berkely Free Press union mark. Overall excellent condition.