They're die cracks- fairly common and well-know. Makes for interesting study of die states, etc. but aside from being interesting conversation pieces, they carry little values they can still be easily found in BU rolls. Nice example of it, though.
Thank you everyone. Sorry for the wrong label, I thought for sure it could be a piece of hair cause I really haven’t seen a example like this being so squiggly and all over the place. Appreciate the comments
