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 Replies: 16 / Views: 1,858 |
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Pillar of the Community
United States
2742 Posts |
An interesting recent pickup that I had to use error-ref to help determine the cause. The reverse features a "greasy ghost" and it is caused by grease migrating opposite large design features because of the lower pressure there. Seller stated it is from a mint sewn bag otherwise the date unreadable. https://www.error-ref.com/ghost-ima...d-by-grease/ 
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Moderator
 United States
97685 Posts |
very cool. I like that formation of Lincoln's head and bust on the reverse like that.
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Bedrock of the Community
United States
94367 Posts |
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Pillar of the Community
United States
5786 Posts |
Love it. Congrats.
Words of encouragement are one of the major food groups.
We need to consume them regularly to thrive and grow.
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Pillar of the Community
United States
6116 Posts |
That's a very cool coin, and your photography is excellent to show just what is going on there. Nice.
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Pillar of the Community
United States
4135 Posts |
That coin has a lot going for it.
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Pillar of the Community
United States
1648 Posts |
Awesome example great pickup! One of best I've seen. ...A ghost-like image of Lincoln's bust seen on the reverse of some Lincoln cents caused by a build-up of grease on the reverse die. Since Lincoln's bust is a large incuse element on the obverse die, the striking pressure on the reverse die corresponding to this area is lower, and therefore grease tends to collect on the reverse die in this area and in the general shape of the bust. Coins struck-through this grease collection will show an incuse ghost-like image of the bust on the reverse. This should not be confused with Progressive Indirect Design Transfer, which is another cause of a ghost-like image of the bust on the reverse of a coin. Another example, I can see many miss these as damage.  Edited by datadragon
12/19/2022 11:32 pm
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Moderator
United States
15493 Posts |
Excellent example, and I learned a new topic reading this.  |
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Moderator
United States
56855 Posts |
Very nice coin and very good photos. John1  |
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Pillar of the Community
United States
5786 Posts |
I'm with everyone here (especially nickelsearcher) about this being a neat one. Thanks for helping me learn a new term today as well.
Words of encouragement are one of the major food groups.
We need to consume them regularly to thrive and grow.
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Bedrock of the Community
United States
62064 Posts |
If so the could should be normal weight 2.5 grams. I'd probably save this one. Just unique.
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Pillar of the Community
 United States
2742 Posts |
Thanks CCF! I appreciate the comments on this one.
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Pillar of the Community
United States
1648 Posts |
There is also a Progressive Indirect Design Transfer: A form of Die Deterioration that also manifests itself in the form of a "ghostly" image of a design element on the opposite side of a coin. The force of a die strike travels through the planchet and into the opposite die. After hundreds of thousands of strikes, the outline of the designs begin to transfer to the opposing die and show on the coins that are struck. In the case of Lincoln cents, it is common to see a ghostly outline of Lincoln's bust on the reverse of wheat cents that are struck in later die states. It is especially visible on uncirculated coinage. (looks like no other areas affected by grease and just the ghost image alone is there)  Error-Ref link separately mentions: These ghost images closely resemble, and are frequently confused with incuse ghost images that form as the result of weak strikes and strikes on abnormally thin planchets. The difference is that coins on which greasy ghosts appear are well-struck and often show other areas affected by grease. So we will need to check the weight, planchet thinness, and if other areas affected by grease or just the ghost image alone is there. Edited by datadragon
12/20/2022 1:29 pm
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Pillar of the Community
United States
2742 Posts |
Thanks Datadragon, what year is that greasy ghost example you posted?
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Bedrock of the Community
United States
10635 Posts |
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Moderator
United States
189546 Posts |
Very nice! |
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Replies: 16 / Views: 1,858 |
Posted 12/19/2022 8:56 pm
