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 Replies: 21 / Views: 3,204 |
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Bedrock of the Community
United States
62064 Posts |
Machine Doubling reduces the overall size of the devices. Hub doubling enlarges the devices.  Compare your coin with the differences shown above. Note how your devices are reduced by the machine damage on your coin.
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Pillar of the Community
 United States
4233 Posts |
I figured it was something like MD, but the rotated appearance throws me off. I can visualize the die chattering to one side like your first picture Coop, but I'm having trouble visualizing the die bouncing such that the bottom right corners of adjacent letters end up in the correct spots and the doubling widens toward the rim. Does that make sense? It's clear on the F and A how the shelving widens towards the rim. Well, I thought it was interesting. That coin's been in my "junk" box since I was a kid and I was messing around with the new loupe today and noticed it. Thanks for the replies.
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Pillar of the Community
United States
5964 Posts |
The die doesn't necessarily bounce with md, it is caused by a worn die.
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Pillar of the Community
United States
4932 Posts |
Hey coop, I assume that doubled die pic you have on the far right is taken from an '83 DDR cent? |
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Bedrock of the Community
United States
62064 Posts |
The Machine Doubling is all machine issue. There are many different forms of Machine Doubling, but all names are now just the cause: Machine Doubling (damage to the coins devices) Die wear is an entirely different issue. The coins are all three 1983 cents. The movement of the dies can be in one or more directions depending on the looseness of the machines die mechanism.    Reverse die was normal, no MD. |
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Pillar of the Community
United States
4233 Posts |
Looks like die wear is the culprit. Image on left is MS66 example; if your wear down metal on the right side of the ridges in "OF AM" it looks like you get my coin.  My 1972 has "common" MD like Coop's example all over the place so I guess it's pretty normal. |
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Moderator
 United States
190135 Posts |
Quote:
Oh jbuck, you have a message I love the Eisenhower dollars, but I defer variety and error attribution to the experts.  |
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Pillar of the Community
United States
5964 Posts |
Quote:
I defer variety and error attribution to the experts I am glad to hear you say that jbuck, I look forward to learning from your attributions. |
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Moderator
United States
190135 Posts |
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I look forward to learning from your attributions. You may be waiting a while.  Meanwhile, follow Coop as he posts his commentary. Also, the links in his signature are a worth the time. |
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Pillar of the Community
United States
5964 Posts |
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Moderator
United States
190135 Posts |
You are very welcome.  |
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Pillar of the Community
United States
5964 Posts |
Where is he going to post?
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Moderator
United States
190135 Posts |
He posts all the time here in the US Modern Variety and Error Coins forum, like he did on the previous page of this thread.
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Pillar of the Community
United States
5964 Posts |
Oh, yes of course. I thought you had meant an upcoming "commentary" maybe in the general discussions section or somewhere. Yes, I will definitely continue to listen to his commentary. He is a very knowledgeable man - while I still have a very long road to hoe, he has certainly set me on the right path.
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Moderator
United States
190135 Posts |
No worry. I see now how it could have been read that way.  |
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Replies: 21 / Views: 3,204 |
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First Page
Posted 04/16/2015 10:26 pm
