Marked "Patent Pending" on the back. Condition: Minor wear including surface scratches and dust. See our other bookends HERE. The item "ANTIQUE BOOKENDS RARE CHARLES LINDBERGH MECHANICAL PROPELLER CAST IRON PAIR" is in sale since Monday, August 17, 2015. This item is in the category "Books\Accessories\Bookends".The seller is "e-earlybird" and is located in Bedford, Ohio. This item can be shipped worldwide.