Unknown 1960's-era printing 20 x 30" event poster for "Putting Together of the Heads", a cannabis-legalization rally held in Hyde Park (Speaker's Corner) in London, England on 7/16/1967.

 Art by legendary Australian artist (and Cream co-conspirator) Martin Sharp, poster is BO1 in the Big O/Osiris series (the first image in the series).

 Thick gold-foil-coated index stock poster is in good to very good (B to B/B+) condition; there are a number of semi-pronounced stress/handling dings scattered throughout the image/outer margin area, along with a few light surface scuffs and razor-thin scratches (a common trait with foil stock) and a hint of corner-tip wear, but overall this is one of the better-looking examples I have come across.

 GREAT-looking 1967 Martin Sharp poster from the first large marijuana legalization rally held in the U.K... Read more about this poster and the fascinating history behind it HERE:

http://sharplegalisecannabis.blogspot.com/2014/04/martin-sharps-poster-1967.html