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 Replies: 12 / Views: 3,384 |
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Valued Member
United States
52 Posts |
hello all, I have had this coin for a few years. went through my bag of randoms and decided to get some thoughts on it. It weighs exactly 2.45 grams. I dont see any pitting or raised edges or and electrolysis chemical damage, but I may be missing it. ( I know there are dots throughout but they do not look like pitting under the scope, again I'm not an expert though) thanks for your input *** Edited by Staff to Add Denomination to Title. Titles are Important! ***  Edited by skidfive
03/14/2022 8:16 pm
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Moderator
 United States
34397 Posts |
@ski, is a strong magnet attracted to this coin at all?
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Valued Member
 United States
52 Posts |
EDIT: found some magnets from the back of a name tag, no attraction at all to the coin
Edited by skidfive
03/14/2022 8:47 pm
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Moderator
United States
34397 Posts |
Ok good to know. It is unlikely to be nickel-plated then.
I'm interested to read what others think about whether this was a normal cent with the copper plating stripped off after leaving the mint or was struck as an unplated planchet.
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Valued Member
United States
52 Posts |
yah, and the weight was 2.45 grams. which is close to the zinc planchet weight.
doing the math on the 97.5% zinc (for a full weight of 2.5 grams), comes to 2.4375 or so.
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Pillar of the Community
Canada
6244 Posts |
The 97.5 % represent the percentage of the atomic mass and not the weight.
Your coin show that was expose to the weak acid, which will take out the cooper and let marks on the zinc. Who made the job let the coin in acid to long.
If was struck without cooper plating, you will see the strike metal flow marks.
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Moderator
United States
56855 Posts |
Diameter? John1  |
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Bedrock of the Community
United States
62064 Posts |
They added the zinc to the surface, thus why the coin is heavier. How do I know that is what happened? Look at the surface of the coin. Note the plated over dust areas on the coin. So the coin has a copper and a zinc layer on this coin. Not a mint error. The recipe is on "Youtube" on videos. If the zinc dust is plated onto the coin that is how you can tell on this addition to the coin. Note the real unplated surfaces are very smooth:  |
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Bedrock of the Community
United States
10635 Posts |
I agree, looks like a zinc added cent, probably a high school science experiment . Post mint damage.  |
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Pillar of the Community
United States
2558 Posts |
Coop. 2.45 grams is underweight if I'm not mistaken. It looks cool!
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Bedrock of the Community
United States
62064 Posts |
Still in tolerance as the mint doesn't weight the planchets, except for gold. Near the rim areas on the reverse you can see the copper showing through on the fields next to the rim. But you can still the plated over zinc dust under the copper first plating. Altered surface.
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Pillar of the Community
Canada
6244 Posts |
Will it is nice. I give you a hint of this coin:
Look at the larger rim and near the thinner rim and you will see acid action bubbles. Majority of the time on the side of those coins we will detect the marks of de-plating.
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Valued Member
United States
354 Posts |
I found one like this 4 years ago. It's just a chemical alteration. My weight was less 2.3 grams if I remember correctly. Good for conversations though.
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Replies: 12 / Views: 3,384 |
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Posted 03/14/2022 8:26 pm
