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<p>[QUOTE="GDJMSP, post: 236108, member: 112"]It happens because of the way dies are made, or were made to be more correct as they don't use the same method any more. To make a die you take a blank piece of steel and press it into a hub - a hub is another piece of steel that has the design carved onto it in raised relief. Then they would take the die and anneal it (heat it up to soften the metal ) and then the same die would be pressed into the hub the second time. It is the second pressing that creates the doubling. It occurs because the die and hub were not aligned exactly as they were the at the first pressing.</p><p><br /></p><p>As to why the doubling is only apparent in some areas and not others, it's because the alignment is only off a tiny degree so doubling only appears in some areas. The larger the degree of misalignment the more doubling that can be seen on a coin.[/QUOTE]</p><p><br /></p>
[QUOTE="GDJMSP, post: 236108, member: 112"]It happens because of the way dies are made, or were made to be more correct as they don't use the same method any more. To make a die you take a blank piece of steel and press it into a hub - a hub is another piece of steel that has the design carved onto it in raised relief. Then they would take the die and anneal it (heat it up to soften the metal ) and then the same die would be pressed into the hub the second time. It is the second pressing that creates the doubling. It occurs because the die and hub were not aligned exactly as they were the at the first pressing. As to why the doubling is only apparent in some areas and not others, it's because the alignment is only off a tiny degree so doubling only appears in some areas. The larger the degree of misalignment the more doubling that can be seen on a coin.[/QUOTE]
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