Commencing with an in depth study of the actual draughtsmanship to explore the hidden features, the text then investigates the donor charts which allowed it to be drawn, much of which has been known for over 100 years, and finally shows that it is the latest manifestation of the “mappa mundi” genre which are usually drawn as circular charts.

The text is 10, A4 pages and contains 21, A4 (A3) diagrams