A Snowmobile Owners Manual is one of those "must have" items if you are operating or restoring vintage snowmobiles. They contain many of the original maintenance tips and specifications that you many find hard to find otherwise. Here is an original OMC Evinrude Skimmer Owners Manual for the models E135A, E145A, and E165A and is copyrighted 1973. This item is gone but you can find all my listed products at http://goo.gl/NRnyJ5