Steve Mulholland, a guy many of us deal with in the vintage community has just got his hands on a very rare bird. Supposedly only 12 have been confirmed, it is a 6536-1 with RED depth lettering. He's asking $76,000! That's a significant premium considering a 6536-1 is in the $12K-$14K range.
You won't be able to see the pics in that thread unless you're a forum member, so I have attached them here: