Be careful of those "M116 Sporting Life Proofs" on eBay
 

Posted By: <b>tbob</b><p>Regardless of what the ASA holders say, these are NOT proofs, they are merely blank backed cards which may have been cut from advertising posters. I have a real proof in my collection (graded by GAI) and is the only one I have ever seen. It is black and white and blank backed.