Vintage 1971 First Prize original marijuana poster. We thank you for your time. The item “Vintage 1971 First Prize original marijuana poster 6310″ is in sale since Wednesday, November 5, 2014. This item is in the category “Entertainment Memorabilia\Movie Memorabilia\Posters\Originals-United States\1990-99″. The seller is “dropyourjeansincorp” and is located in Covina, California. This item can be shipped worldwide.