I'm not 100% sure but I bet it says something like "Freiherr". You might try posting this question in the "Memorabilia" section of the forum.
Speaking of MvR's signature...have you guys seen what that loser Ivan Berryman has done to a supposedly "authentic" signature?
I think it's LAME and a complete waste of history...especially when done by a hack.
I just think it's tacky..and I'm really starting to wonder how one guy can paint so much crap.