This topic has run it's course. I see the OP just posting more images and we will keep telling him it's damage.
If your friend is so sure have him fork out the dough to send it to PCGS and you'll split the profit with him on this rare quadruple stamped coin with smear trails. It would be a no lose situation for him if he's right.
When you get the coin back from PCGS, take a photo of the slab to post here. Use the contact form to let me know you have it and I'll unlock the topic for you.