Martin Sharp's highly collectible poster for the 1967 "Legalize Cannabis–The Putting Together of The Heads" rally in London's Hyde Park. Sharp is best known for creating the cover for Cream's "Disraeli Gears" album, and his posters of Bob Dylan, Cream and Donovan. This tour-de-force for one of the first Marijuana legalization rallies is printed in black and red on gold foil paper; unfortunately no photograph can do it justice. This is #01 in the collectible Big O poster series. 20" x 30", in near excellent condition, with some light edge creasing and a closed and virtually invisible 1/2" tear to the top edge (entirely in the border, not touching the image.) While this poster has been reprinted, this is guaranteed to be a 1967 first printing.