Well, it seems to come with as certificate of authenticity, or a letter explaining its provenance, doesn’t it?
Talking about outrageous items, look at this Sanke card signed by MvR himself. The poor buyer failed to notice the black border around the card, and the cross after Richthofen’s name, meaning that Richthofen was already dead when this card was issued.
This item was sold on June 28, 2008 for $3,766 plus shipping. Ouch!