Somewhere I have a file with a bit of the patent pictures of the 299. They pretty much patented the whole engine and bodywork of the original 1916 version. I believe they pretty much patented every part of importance. Here is a picture of the engine from the front view with the original 1916 intake manifold which was much lower than the 1917 onward version. Also a drawing of the camshaft. Somewhere I have other pictures but I have not seen them in quite a while so they must be in a file box. Also here is a handy picture of the patent on the body. The body had a small hole in the tail where you inserted a socket and when you turned the socket the body came free of the frame. There were dowel pins on the frame.