Hoth Bricks and Brickshelf user grogall have found official box art for the upcoming CUUSOO set, 21103 Back to the Future Time Machine. As previously reported, the set will go on sale this Thursday July 18 through LEGO Shop@Home and LEGO Brand Retail and most likely other online vendors such as Amazon and Toys’R’Us. Still no word on price though but stay tuned as we try and find out more details.