That is a nice old artifact and you can see it is well used . That is a interesting piece look's like it has some good flaking on it . Steve is that the cortex that I see on one side ? Good find Steve . Thanks for posting.
That is a very interesting piece with all the built up patina on it, look's like it has been around a while and could prob tell a story or two. in the third photo it look's like it is a fairly thin piece. Those are the type's of piece's that I like to just look at and study, you can just look at it and see it has had a lot of use. Very interesting Steve.