Al,
Those images from Metropolis, near the end of that Queen radio ga ga video are the ones they used in the concert with Adam Lambert.
Since we have digressed slightly into music & machines, you might find this very interesting, if you have not seen it already, it is amazing what you can do with plywood & ball bearings:
https://www.youtube.com/watch?v=IvUU8joBb1Q
Hugo.