Can you explain what may have caused the color of this coin.
This coin which has been designated as J-1451A has been found by metal testing to have the normal metal content of a regular issue three cent nickel piece. It was submitted as a regular strike in the 7/26/1980 NASCA James David Duncan sale. I am suspecting based on its unusual color it was submitted and characterized as a pattern felt to be of copper origin at that time. It will now need to be delisted as a pattern. Does anyone have an explanation for what may have caused this coin to have this appearance?
As an interesting side note. Metal testing has shown a number of the 3C patterns that I have submitted have a much different metal content than what has historically been recorded.