I went too, on Saturday. Very hungover and weary after beoing at Turnmills until 5am and then trekking across the Tube network with numerous cricket bags, suitcases and shopping bags.
The viewing was much smaller than I expected and when I was there a BA Concorde pilot was there, can't recall his name although I was sitting down on the seats you could try when the pilot came over and asked what I thought of the seats. Strangely he knew less about the items in the sale than I did! He thought that despite all the Concordes that went to museums fully intact, the seats for sale had flying experience, yet BA ordered 8 plane loads of seats.