Identifying the coin in the title makes it much easier for interested people and experts to find locate your question.
With this coin, you have what Crazyb0 said, split-plate doubling. The thin copper plating reached its stress point during the strike because of being too thin or too much pressure in the strike. When it splits, it does so in the shape of nearby devices (if any).
That's why it looks "doubled". The grey color is a dead giveaway because that is the exposed zinc core.
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