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 Replies: 12 / Views: 1,467 |
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New Member
United States
11 Posts |
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Pillar of the Community
Canada
1747 Posts |
Because these are a mix of copper and nickel (cupronickel) sometimes the mix is off, and you get discolouration, similar to a "woody" cent.
The all black one is the most extreme, and they call these blackies.
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Valued Member
United States
118 Posts |
Finally, now I know where the few "Black" pennies come from. I filled one of my Lincoln sets with just black and red...my old high school colors. And  to Coin Community ! You will learn a lot here at the forum. |
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Moderator
 United States
56855 Posts |
The black one looks like it was in a fire,maybe a house fire. The rest look like some sort of acidic contact.I don't see any of them as a "mix" problem. John1  |
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Pillar of the Community
 United States
1034 Posts |
The jfk, third from bottom of all pics, looks interesting? Pictures are hard to tell if it has grime on it or metal? Or possibly just scratches ( PMD) Edited by kurdlezuit
02/13/2015 06:56 am
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Bedrock of the Community
United States
62064 Posts |
So many things can alter coins. Even shampoo can ruin the surface of a coin. So the coins shown are probably best spent as they are not collectables anymore. They can be replaced with better ones for little cost. Even finger prints can ruin copper coins. The last one looks like something is on the coin. So handling coins correctly, storing them correctly can save/ruin a coins collectable state.
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New Member
 United States
11 Posts |
The Kennedy on the bottom is crazy. I don't think there is anything on it. It literally has chunks missing strange lines chips etc. And on obverse side the surface is not smooth at all I'll create another post with better pictures
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Pillar of the Community
United States
1192 Posts |
The black kennedy looks like a fire or a dug coin. I seen them super black like that doffing them.
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Rest in Peace
United States
7075 Posts |
Your pics aren't really clear enough for me to say for sure, but that Kennedy that is so beat-up looks like it spent some time in a parking lot, getting dragged around, plowed, etc.
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Bedrock of the Community
Australia
21786 Posts |
The 'woodiness' in bronze coins is caused by imperfect mixing of the metals, which is then striated when the coining strip is rolled to thickness.
Blotchiness with the coins pictures is perhaps caused by a differential variation in whatever has been in contact with the coin. In almost all cases, some moisture has been involved.
As already indicated, imperfect mixing of the alloy metals could have also contributed to what you see here.
Any coin can be blackened with excessive heat. Try it for yourself in the kitchen; just be careful not to burn your fingers!
Edited by sel_69l
02/13/2015 9:44 pm
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Pillar of the Community
United States
1249 Posts |
I want to see that 3rd one up close good pictures. All angles lol seriously I have posted things and then had them looked at by coin shops just had one looked at by weaker that was a double and no one on here thought it was. Finally got it attributed so you never know man pictures are tough to tell but I really want to see better pics of that 3rd coin
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Pillar of the Community
United States
619 Posts |
Bertensgrad is right. The solid black coins are probably metal detector finds. Clad coins usually turn red and/or black the longer they stay buried.
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New Member
United States
11 Posts |
I will post better pics I'm new at this and its more difficult than I thought lol stand-by
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Replies: 12 / Views: 1,467 |
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Posted 02/13/2015 02:01 am
