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What does Double Die mean?
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<p>[QUOTE="Hobo, post: 1115599, member: 11521"]AO. The term is double<b>D</b> die, not double die. It means the die has been doubled. The die-making process is somewhat complicated but I will try to keep it simple. </p><p> </p><p>In years past a hub (with a positive image of the coin) was pressed into a blank die (negative image of the coin) multiple times to make a die. Each pressing of the hub into the die is called a hubbing. In between hubbings the die would be annealed (softened) before the hub was pressed into it again. If the hub and die were not precisely aligned the latest hubbing would create doubling on the die. Every coin struck by the doubleD die will have the doubling and is referred to as a 'doubleD die' coin. </p><p> </p><p>An example of a doubleD die coin is the 1955 DDO (doubleD die obverse) Lincoln Cent. Check out the photo at <a href="http://coins.thefuntimesguide.com/images/blogs/1955-double-die-penny.png" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://coins.thefuntimesguide.com/images/blogs/1955-double-die-penny.png" rel="nofollow">http://coins.thefuntimesguide.com/images/blogs/1955-double-die-penny.png</a> . (Yes, the file name incorrectly refers to the coin as a 'double die'.)[/QUOTE]</p><p><br /></p>
[QUOTE="Hobo, post: 1115599, member: 11521"]AO. The term is double[B]D[/B] die, not double die. It means the die has been doubled. The die-making process is somewhat complicated but I will try to keep it simple. In years past a hub (with a positive image of the coin) was pressed into a blank die (negative image of the coin) multiple times to make a die. Each pressing of the hub into the die is called a hubbing. In between hubbings the die would be annealed (softened) before the hub was pressed into it again. If the hub and die were not precisely aligned the latest hubbing would create doubling on the die. Every coin struck by the doubleD die will have the doubling and is referred to as a 'doubleD die' coin. An example of a doubleD die coin is the 1955 DDO (doubleD die obverse) Lincoln Cent. Check out the photo at [URL]http://coins.thefuntimesguide.com/images/blogs/1955-double-die-penny.png[/URL] . (Yes, the file name incorrectly refers to the coin as a 'double die'.)[/QUOTE]
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