i dont think it is illegal to sell by itself, but it certainly creates the opportunity for fraud down the line. i highly doubt someone is buying the LOA in order to frame it and say they have a jeter autograph. i believe that it will inevitably be paired with a bat - whether that bat is a legitimate bat is another story, and therein lies the problem.

in my opinion, steiner should do whatever they have to do in order to reobtain the letter. if that means winning the auction, they should do so.