I have a very large (8'x12') 45 star flag that belonged to my ggg grandfather (civil war vet). It was stored, folded like a sheet in a bag, in my grandparents attic for many years before I was able to get posession of it. It is wool and is showing some deterioration where it was folded. I currently has it folded properly in a flag display case. Is there any hope of restoring this family heirloom or should I just leave it alone and in the case? I hope to pass it on to my grandson when the time comes.