Big O Posters, London
Martin Sharp, Legalise Cannabis. The putting together of the heads. 2 pm on Sunday July 16 at Speakers Corner, Hyde Park. Stone Free. Strawberry Fields. Inscribed on lower left margin: BO1 Cannabis by Martin Sharp. Published by Big O Posters Ltd., 219 Eversleigh Rd, London, SW11 5UY, 01228 3392. Printed in England. Offset lithograph poster, printed in red, orange and black on gold foil backed with card, 20 x 30 inches.