f67v2 is a bit like the Rosettes foldout but without the rosettes.

[pjburkshire]

I'm sorry but there is no historical precedent for describing "classes" on a map that is otherwise popularly used to describe the three continents. I'm afraid this argument doesn't make much sense.

I'm sorry I was not clear.  I am not saying that the 3 classes are on the T-O map.  I am saying that the T-O map itself represents the Nobility class.  The Nobility class holds dominion over the physical world -- thus a map of the physical world.  Other symbols are used for Clergy and Commoners.