Sure. Its a fake.
Some guy back in the Middle Ages decided to create a fradulent shroud. He apparently didn’t bother selling it to anybody. He went so far to insure its ingenuity that he took a time capsule into the future to learn about human physiology, palynology, linen weaves, etc. He then created a relic on which most viewers couldn’t even detect the accuracy of his fraud by simple vision. He also used a technique we can’t even explain todauy today to create the image. And he did this at a time when you sell the mummified head of a monkey for a forune as being the head of saint so-and-so.
Sure. A fraud.
Read some about it - check it out. You can only loose some of your time doing it and it might change your mind.
It is a fascinating subject isn’t it?
I was thinking of a way to lay out the historical features and found it - Thanks for posting some of them.