I went back out to one of the areas that gets me a fairly amount of minie balls and got a low signal. I dig it and it looks like a coat button. I clean it up and it is, not great shape, but I like it. I had found some flat buttons before and 1 other coat button, but it disintegrated as I dug it up. This is my first good coat button... made me pretty happy. I have cleaned it up a little more since these pictures. It was made by Waterbury.