I found this Sunday and put it in the trash side of my pack. I was looking at it again because of the weight and what looks like a design. It may be what it was on when the lead was poured. It is in the shape of an arrowhead (and I thought it was until the pin pointer hit it), about 2 and a half inches long and is very heavy for its size. I found it in an area where we find a lot of Civil War artifacts and about 6in down. Any thoughts?