This is the only one of its kind signed by Ray Bradbury. He told me this at the time he signed it in his home in Cheviot Hills in Los Angeles. He made reference to it and told me that he had never seen one of these prior to seeing this one. This item is from my personal collection of Ray Bradbury material I put together over many years. This promo piece was obtained years ago by my good friend in Tokyo. This is the story by Ray Bradbury that the term ?butterfly effect? in time travel coined by physicists.. A story possibly inspired long ago by H . G. Wells who had a major influence in the writing of Ray Bradbury. This gorgeous rare piece of promotional film ephemera is signed nicely and boldly in silver by Ray Bradbury on the front as shown. I presented this to him for the signature at his home Document of Assurance with a photo of this unique signed item accompanying thus rarity. Large folding promotional brochure printed in Japan and in Japanese. Ray Bradbury's A SOUND OF THUNDER film which was released in 2005. Folded it measures 10" x 14-1/2". Three times this size unfolded. This was printed on quality slick paper stock. John Anthony Miller Phantom Bookshop Ventura, CA