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Replies: 39 / Views: 4,875 |
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New Member
United States
8 Posts |
New to this forum. I have a 1987 Lincoln Head penny with a silver looking finish and it is magnetic. It jumps up onto a magnet from 1/4" away. It weighs 2.55 grams. Is this a common find? Thanks for you help. Robert
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Moderator
 United States
14463 Posts |
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Rest in Peace
United States
17900 Posts |
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Pillar of the Community
United States
8715 Posts |
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Bedrock of the Community
Australia
21788 Posts |
Was the U.S. mint using copper plated steel blanks for executing circulating coinage orders for other countries at this time? The British Royal Mint use a different approach. They strike steel planchets, then copper plate them. Edge pictures would help in this discussion.
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Valued Member
United States
112 Posts |
just watched a painted penny react to a magnet (edge was copper)..watched a magnets stick to a painted wall.There are magnetic paints/primer...just a possiblility
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Bedrock of the Community
United States
74886 Posts |
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Moderator
 United States
34430 Posts |
@Bplace, first welcome to CCF. Second, I agree with the others that pics would be nice. We sometimes see cents that have been nickel-plated and these are slightly attracted to magnets.
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"The danger we all now face is distinguishing between what is authentic and what is performed." -----King Adz
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Bedrock of the Community
United States
12477 Posts |
Pics are definitely needed. However, I don't think nickel plating will make it jump off a table from a 1/4" away. 
In Memory of Crazyb0 12-26-1951 to 7-27-2020 In Memory of Tootallious 3-31-1964 to 4-15-2020 In Memory of T-BOP 10-12-1949 to 1-19-2024
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Rest in Peace
10197 Posts |
No, but chromium wouldn't it?
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Bedrock of the Community
United States
12477 Posts |
I will have to test tomorrow, but I'm not sure even a steel plating would make that happen. The plating accounts for so little mass that it must be highly magnetic to lift the whole coin like that when the overwhelming majority of mass is from the non-magnetic core.  Quote: No, but chromium wouldn't it? Chromium is not magnetic below about 100°F, so I doubt that is the answer.
In Memory of Crazyb0 12-26-1951 to 7-27-2020 In Memory of Tootallious 3-31-1964 to 4-15-2020 In Memory of T-BOP 10-12-1949 to 1-19-2024
Edited by spru 05/15/2018 01:36 am
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Pillar of the Community
United States
1901 Posts |
Interesting 
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Moderator
 United States
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 to the Community!
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Pillar of the Community
 United States
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United States
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In some cases, for a magic trick a coin will have a piece of iron inserted into it so it can be made to "vanish" by use of a magnet.
Is the coin uniformly magnetic all over or is it more highly magnetic in a specific area.
Edited by Conder101 05/15/2018 1:00 pm
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Valued Member
United States
274 Posts |
It's probably plated with adamantium.
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Replies: 39 / Views: 4,875 |