I found this while dismantling an old log structure in eastern TN. It must have been in the chinking and my first thought was that is was a spear point but that seemed like a rare thing to find, so I thought maybe a letter opener. It has a flat side on the blade with the other side having a triangular profile. The two notches make me think of attaching a spearhead using sinew, as in an arrow. I think it may be wrought iron due to the grain and lack of oxidation. What do you guys think?
Sorry for the crappy pics.