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Bubbles posted by Eagles-R-it

Started by CSJournals-migration,

3 posts in this topic

TD Henson

TD Henson

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Posted

The worst years are 83 and 84 after the conversion from copper to copper plated zinc. My understanding is that these occurred in the plating process and that the bubbles represent trapped gas during this process.

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L1ncolnF4n

L1ncolnF4n

Posted
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The worst years are 83 and 84 after the conversion from copper to copper plated zinc. My understanding is that these occurred in the plating process and that the bubbles represent trapped gas during this process.

 

Correct. They are undesirable to collectors.

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