I had the opportunity to spend the day in Wooster, Ohio at the John Deere Eastern National Expo. There were over 700 tractors and many restorations were simply breathtaking. Of course, there were plenty of parts and toy vendors too. Here's a link to nearly 200 photos I took. There's even a video of an original D running a belt.
I've also attached a few teaser photos here showing some of my favorites. The black and gold Patio lawn tractor is a recreation of a factory prototype color scheme which was never produced. The owner used actual factory photographs of the prototype to duplicate the colors. He also had a beautifully restored example of each Patio tractor ever produced.