I spent the better part of my lunch hour reading that thread. Bobby believes it to be a MB because of the white line on the left border (card horizontal). I believe that white line is just from being miscut.
According to this image I found on Google, the Ryan was the bottom left card on a regular Topps sheet. Therefore, if the card was miscut, it could have a white line on the left border or the top border, but not on the bottom or right border, correct?