Stolen chair?  

Second attempt
They missed it the first time this chair was run in March of '07. It had a higher estimate then and failed to sell.
I'm certain that Wright auction would never take a consignment that they even suspected may be stolen.
http://wright20.com/auctions/search/ALL/ALL/wright%20wax/1/2

@Olive,
"In that case I...
@Olive,
"In that case I wonder what Zahia Hadad would come up with for furniture..."
Wonder no more. You can see a Zaha Hadid-designed sofa for Sawaya & Moroni at the link below...
http://www.designboom.com/closeup/zahahadid2.html

More Hadid
PP Møbler: The Ordrupgaard Bench
http://www.pp.dk/index.php?page=designer&id=23&view=collection

Furniture designed....
for a specific building is not very unusual. What is unusual is that they achieve a good balance between being coherent with the form language of the building and comfortable at the same time. There seems to be an inherent contradiction between the senses by which we experience a building: mostly seeing and hearing etc. and those related to comfort: feeling. In my experience the Scandinavians have been most successful in combining the two although some of the Alvaar Alto classics are not a good example of it. For most designers regardless weather they are architects or industrial designers it is still a major challenge to find that balance. Most architects find it closer to a coherent image with the building, most industrial designers will be able to make it comfortable but with less visual presence.
F.L.Wright is a very good case in point. A very strong presence but always uncomfortable?and of course the maestro preferred that the users would adapt to his buildings and furniture than that the furniture would serve the users?.called once because the roof of one of his buildings was leaking, his answer was:?and what is the problem don?t you have a bucket?

Piano and Meier...
First, I am interested to see what Piano's assembled functionalism could come up with. Has anyone seen any of his buildings where he did most of the furniture? I have a hunch that he might do more than just strike a balance. His buildings have such a functionalist look that the furniture might just erect up out of the floor like the rest of the building and be both comfortable and a part of the building, too. At the CalAcad museum there were signs of both retro chairs by Eames in the cafeteria and his own benches. The benches were uninspired. But all seemed comfortable and assembled, though I don't know if he did the benches or not.
Though I don't find the Getty Museum in LA much to crow about as buildings, Richard Meier, or whomever, did a terrific job on the wood furniture inside for visitor seating. It was incredibly cheap to make. I could make most of the pieces with my own table saw at home. Yet it was quite appealing. Its form language is quite consistent with the buildings themselves. The furniture is imminently comfortable. And, frankly, I've been amazed that some furniture maker has not wanted to produce them for home use. Maybe they do and I don't know about it.

Wright
Wright wouldn't have taken a consignment if he had any idea it was stolen, obviously. Speaking of stolen - I had two lucite Kagan chairs stolen from me! 🙁 From a set of four. Now I have a set of two.