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 Replies: 8 / Views: 4,898 |
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Valued Member
United States
161 Posts |
This 1995-D cent seems to have a doubled T in Trust, but none of the other letters seem to be doubled. What do you think? Is this a DDO?    |
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Moderator
 United States
56855 Posts |
Looks like PMD to me,sorry.
John1 
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Pillar of the Community
United States
1027 Posts |
For most DDO / DDR coins, it is not really necessary to ask. While "THE" 1955 DDO (pictured below) is one of the most dramatic, most true double die coins are evident to all who see them. Most of the time when we have to ask both ourselves and others "is this DDx?". we are looking at either minor Strike Doubling or PMD. Also, I have had people ask me if what they see as minor doubling is an example of the coin below and I have to point out that a doubled die produces many examples that are identical, a doubled die does not produce varying degrees of doubling offset over time. I think your example is either PMD or some sort of struck through damage.  |
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Valued Member
United States
462 Posts |
Why is it that only the letters and numbers are offset and not the bust? I thought when they created the dies that they're all stamped at the same time and that only the mint mark was applied separately?
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Pillar of the Community
United States
1027 Posts |
That is the case today but was not in 1995. The devices and legends were separate steps and the mint marks were a third step if needed. Today, a complete die is made in one step including the mint mark in most cases.
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Pillar of the Community
United States
1027 Posts |
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Bedrock of the Community
United States
12437 Posts |
Quote:
Why is it that only the letters and numbers are offset and not the bust? I thought when they created the dies that they're all stamped at the same time and that only the mint mark was applied separately? First, a small primer on how doubled dies are created. Dies are created by being impressed on a hub, a positive image die. Prior to the 1990s, die were generally hubbed twice(a few triple and quadruple dies are known). After the first hubbing, the die would be annealed to soften it for the second hubbing. If the annealed 1x hubbed die was not perfectly aligned with the hub for the second impression, a doubled die would be created and would fit in one of the nine classifications. The 1955 is a Class 1 doubled die, Rotated Hub Doubling. The second hubbing was misaligned counterclockwise so the smallest radius of rotation is at the center with the largest radius of rotation at the periphery. You can see this phenomenon in LIBERTY with the L having the largest separation and the Y the smallest. Regarding mint marks, They were applied to the dies by hand prior to 1990 and that is the reason why repunched mintmarks exist. Currently, the mintmark is part of the master die and RPMs are no longer possible. |
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Pillar of the Community
United States
7629 Posts |
Kisnap - The hair, lips, jacket, and other parts of the 1955 doubled die are absolutely doubled. As Biokemist said, though, the doubling is greater toward the outside of the design - much like spokes on a bicycle wheel - they are closer together in the middle, and farther apart toward the outside of the design. Clairhardesty - All due respect - if you don't know your answer to be a fact, please do not post it as fact. The entire design, sans mintmark, was hubbed into dies all together going all the way back into the first half of the 19th century. The only caveat being that the date was punched in separately until the first decade of the 20th century. Since then the date has been a part of the design as well. The change in the hubbing process you may be referring to was in 1997 when the entire depth of the design was hubbed into the die using a single squeeze rather than multiple hubbings as had been required until that time. This was supposed to end the era of doubled dies, but as evidence continues to be found, that didn't work out so well for the mint. Profound doubled dies have been found on US coins as recent as 2006. I'm not admonishing you here - I am simply asking that you know your facts before teaching others what you think is fact. At least state that you are not sure of what you post if you are indeed not 100% sure of what you are saying. |
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Pillar of the Community
United States
7629 Posts |
Oh...and the coins in the color pictures is NOT the same die as the listing copied from the book. I do not believe the coin in the color pictures to be a doubled die at all.
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Replies: 8 / Views: 4,898 |
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Posted 10/29/2010 10:50 am
