got to looking at the mazzocchio on that guys head and started fooling
with the object. I discovered that in order to make the lathed 6-sided
object that revealed a center space in the orientation shown in the Uccello
wireframe that the hexagon could not be a regular shape. The diagonals
have to be twice as long as the verticals. These guys were crafty
as a headpiece, they were employing a distortion inorder to telegraph
the perspective to a street level observer. Nice tweak!