Hi All,    In my excitement to get a photo to the forum, I'm going to try to upload a photo that has several of our recent finds.  The one I'm hoping someone can identify for me is the dark one in the lower left corner.  It has a very regular chevron or herringbone pattern that will hopefully help with its ID.  Next, if possible, any ideas on the white tooth, top right?       I'll get better photos to demonstrate the pattern and size and also the top of the dark one.  Thanks