
This called "soft porous paper" versus the "hard white"woven paper???

If "the heavily mottled look of the "soft porous" " is described in the right way, it is the "soft" paper that is WOVEN (symmetrical linen-binding) by excellence!
It is obvious that the term "mottled" has been used here without knowing much about the paper making process. ...
What makes sense in this context are the images of the perforation!


This is what has to be noticed! Not whether both cases of woven paper can be told apart.