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Rainbow coinage
A question regarding AT or NT classification for this coin. As you can get the rainbow look on coins by having that coin be in contact will certain metals; and as this is what the pictures shows.
There was no manual altering of this coin; the coin was in contact with a metal on the reverse where the rainbow exists for around one year.
What is your classification for this coin Natural Toning or Artificial Toning?

There was no manual altering of this coin; the coin was in contact with a metal on the reverse where the rainbow exists for around one year.
What is your classification for this coin Natural Toning or Artificial Toning?

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