I know that London Coins have sold a few, in fact that was where I purchased one (about 10 years ago). It was only fair and I ended up selling it on. About 18 months ago I was close to buying one of a nice chap in America which was the best example I had seen. It was a bold Good Fine, but I just couldn't go as high as he was looking for in the end (I offered around £2,700 if I recall). Apparently, a woman in America found it, took it to a local friend who noticed what it was and recommended the dealer to her. If I recall correctly it ended up back this side of the pond. I will try and find the pictures if I still have them!