1 7/8" Arrowhead

This little puppy kinda snuck up on me. My brother and I were on the way back to the truck, and I saw this about 3 feet from him. His response - "I always forget to look for those". Its not a bad one, either. The tip is missing, but the rest is there, and the edges are nice and sharp. I wish I knew more about these things. Maybe someday I'll buy a book.