I know of one that may or may not have the anti-reverse on it. I think by the nature of having wheels pressing down on it with rubber O rings on it...would keep it from back spinning. I have not seen it for a few years....and have not been HERE for 2 years. And leaving in a couple of days. I will try to get ahold of him and or get a pic for you. If he allows it I can PM you his telly. You might be able to create your own after seeing a pic of it.
jim