Received confirmation today that it is a Native American Old Copper Point 4000 to 7000 years old. The curve of the blade most likely was caused by the weight of ground or maybe freezing of the ground. I had two different places say that it has some unique features. This quote is from Sheboygan Historical Society
"Hi Scott,
I spoke with our collections person and we both agreed that it is a very fine artifact. We have one in our collection very similar to it. What info we have, or could find, goes with what we spoke about . We date it to around that time period as well. They were quite common in this area, especially near the lakeshore. They were used for fishing as well as other things. There is some uniqueness to it in that it is a fishtail end. Many were bent to wrap around a stick or handle to make a spear or tool. It is more than likely copper from Northern Wisco. or Upper Mi. Probably found its way to this area through tribal trading. We feel the bend in the blade is probably due to natural pressure. Copper is somewhat pliable. Many of the tribes in this area used copper tools until the introduction of steel by the Europeans.
We also suggest contacting the state Archeological Office for further information. They will have a much more information on hand than we do. Again, it’s a very nice find and you should be happy you found it."
This is from the Milwaukee Museum.
"Dear Mr. Burch,
Thank you for sharing this interesting piece with us. Please be aware that without examination by an expert, in person, it is impossible for MPM to offer a positive ID. However, based on the pictures you provided I can say a few things about the object.
Given the greenish patina and its provenience near Sheboygan, an identification to Old Copper Complex does seem likely. The shape of the tang [base] of the piece closely resembles the Old Copper type known as flat stemmed points.
However, there are also very interesting and incongruous attributes to this pieces as well. The reddish color that overlays the green patina, as well as the very flaky and degraded edges indicate iron oxidation, that is, rust. Old Copper tools did not incorporate iron. Also, the side view you provided displays how very thin this piece is; this thinness points to a possible heated hammering style of production, which also does not occur in Old Copper material. The distinct rounded leaf shape of the blade is also intriguing, as many Old Copper points have more distinct "shoulders."
A search of several European, Eastern, and North American metallurgist styles produced no blades that exactly matched the photos you provided. Several explanations are possible for this unique point: the iron oxidation could indicate a contaminated copper sample was used, as many large iron deposits exist in WI. The shape and thinness does not exclude it from the Old Copper, but it could be an "outlier" to the spectrum of flat stemmed points. However, these attributes are things to take into account if you continue to look into this object.
I understand the piece was found near Sheboygan; if you are local to the area, or ever have reason to come to Milwaukee, I would encourage you to make an appointment to bring this find in, so the Anthropology staff could examine it in person.
Thank you for sharing your find, I hope this has been helpful to you!"
This has been a great journey in finding this point and the history behind it. Thanks to everyone who responded....