Ann made this many years ago. It's hard to comprehend it with a picture but for the past 5 years she has been requested of her to bring it to the Woodworkers show in Saratoga Springs for the "Toy Factory". After the first year, she had to put the plexy glass on it to prevent kids from reaching in on it to grab the marbles where they would break some of the mechanisms.
I first saw this amazing hand made device about five years ago in Saratoga and it was so nice to see it 'performing again'. It is a favorite at the show and there kids do love it.