Hello Dan. May I ask you to post this gallery of Pantocrators & mandylion compared to the face of the Shroud + Vignon marks? Maybe this would be convincing presentation that (in my opinion) assuming that all those faces are not derived from the Shroud is absurd. Having some time, maybe I will try to put the Vignon marks on all those portraits, but let the public play with them first.
Okay, here it is: Gallery of Pantocrators & Mandylions+2002 Durante positive photograph of the Shroud face (taken from Shroud Scope)+ Vignon marks (taken from shroudstory.com)
By my count (and opinion), there are
19 20 works of art, a diagram and the the face on the shroud in one very helpful PDF file.