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All Forums Category: US Coins and Currency Forums Forum: US Modern Variety and Error Coins

Roosevelt Dime Gas Bubbles?

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drdave
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 Posted 10/25/2011  07:57 am Show Profile   Bookmark this topic Add drdave to your friends list Get a Link to this Message Number of Subscribers
The bubbles on this 1979 dime are unusually located. The reverse one is 180 degrees from the obverse one. Are these caused by gas bubbles? Any thoughts? Is it rare?

Roosevelt-Dime-Gas-Bubbles?

Roosevelt-Dime-Gas-Bubbles?
John1
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 Posted 10/25/2011  08:00 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
Looks like it was heated to me,maybe it was in a house fire?
John1
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yankee1227
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 Posted 10/25/2011  10:24 am  Show Profile   Bookmark this reply Add yankee1227 to your friends list Get a Link to this Reply
I agree. I heated a quarter up one time and had the same result.
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Conder101
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 Posted 10/25/2011  12:34 pm  Show Profile   Bookmark this reply Add Conder101 to your friends list Get a Link to this Reply
Yes they are causd by trapped gas bubbles. Bubbles that expanded after the coin was exposed to heat high enough to randed the metal "plastic" allowing the bubble to expand like a balloon.
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All Forums Category: US Coins and Currency Forums Forum: US Modern Variety and Error Coins



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