The 64 counties are each drawn 12 times, shaded by the deviation from the expected rate of unemployment, given the time and the place, on the equal population cartogram in an isometric perspective — software by author on an Archimedes computer and Ace Computing.
Many unsuccessful attempts were made to try to show three dimensional structures on flat paper in this dissertation. Here the pattern for London can be made out, but many other places are obscured. The structure is too tricky to catch in a couple of perspective pictures. We need to be able to see it on a computer screen to be free to rotate it as we wish.