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Replies: 11 / Views: 5,217 |
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New Member
United States
2 Posts |
Is this coin worth anything? I'm not sure if the misprint was done during minting, or post mint. Any feedback is appreciated. Thanks  
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Moderator
 United States
56855 Posts |
 to CCF. Not sure,looks like something was put on it after it left the mint.Give it a bit for a pro to chime in, John1 
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Bedrock of the Community
Canada
21654 Posts |
 Looks like solder was added. No matter what is though, it is PMD. Wasn't done at the mint so not an error. FYI- Currency is printed, coins are struck.
Edited by JimmyD 06/19/2018 2:23 pm
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Pillar of the Community
 United States
6514 Posts |
It does look like solder. I assume the coin is a nickle alloy. Nickle is notoriously difficult to solder. Takes a lot of heat. Surprised the coin isn't darkened or otherwise damaged from the process.
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New Member
 United States
2 Posts |
If you look at the top left corner, closely..... you can see it looks like it was possibly stamped or struck, after the material that is bubbled on top, was there. Meaning...... the ring of little dots that circles the edging of each side of the coin....... shows struck into that material a little bit.
I could be wrong, though.
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Bedrock of the Community
Canada
21654 Posts |
. Quote: I assume the coin is a nickle alloy
The coin was minted sometime after 2005 so it would have a steel core plated with copper and nickel. Quote: If you look at the top left corner, closely..... you can see it looks like it was possibly stamped or struck, after the material that is bubbled on top, was there. Meaning...... the ring of little dots that circles the edging of each side of the coin....... shows struck into that material a little bit.
It is impossible to have something bubbleup on a coin being struck. If there is anything on the planchet during striking, the amount of force would force it into the coin causing what is known as struck through. The image of the coin would still show and not be smooth. Edit- Correct typo
Edited by JimmyD 06/19/2018 4:18 pm
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Moderator
 United States
189767 Posts |
 to the Community!
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Valued Member
Canada
291 Posts |
Quote: It is impossible to have something bubble up on a coin being struck. Not true. Sometimes bubbles can form from impurities in the planchet that get compressed during striking and expand afterwards. This is not that tho, since the design normally remains on the bubble. See http://www.error-ref.com/gas-bubbles/
Edited by KHatt 06/19/2018 8:29 pm
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Pillar of the Community
Canada
870 Posts |
please weigh the coin. a quarter of this year should weigh 4.4 grams. with that much extra solder added, it would weigh more. if it is a bubble, it should be close to 4.4 grams. but please note that no one here has seen a gas bubble this size so it is unlikely to be an error and more likely PMD.
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Bedrock of the Community
Canada
21654 Posts |
I realize that there is such a thing as "Gas Bubbles" but it is my understanding that they only appear on alloy coins. This quarter is a clad coin.
By definition, occluded gas bubbles are generally restricted to solid-alloy issues. While gas bubbles are sometimes seen on clad coins, these always turn out to have been caused by heat applied externally outside the Mint.
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Valued Member
Canada
291 Posts |
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Bedrock of the Community
Canada
24885 Posts |
 To the Forum.
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Replies: 11 / Views: 5,217 |
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