to the CCF!
Posted 12/25/2019 01:05 am
FisherP- Welcome to the forum.
It's usually better to start a new thread to avoid confusion with followup replies between your coin and the OP's coin (Original Poster).
Yours is definitely damaged from what was described as "zinc rot" in the original replies. Oxygen gets through the copper plating because of damage and causes the zinc core to react and dissolve away, usually in a circular pattern.
The zinc first expands (like iron when it rusts/oxidizes) creating a slightly raised area around the center similar to a volcano.
ps. It would have been interesting to see the reverse of the OP's coin because the damage does look to be more symetrical and deliberate rather than environmental like Coop mentioned.
It's usually better to start a new thread to avoid confusion with followup replies between your coin and the OP's coin (Original Poster).
Yours is definitely damaged from what was described as "zinc rot" in the original replies. Oxygen gets through the copper plating because of damage and causes the zinc core to react and dissolve away, usually in a circular pattern.
The zinc first expands (like iron when it rusts/oxidizes) creating a slightly raised area around the center similar to a volcano.
ps. It would have been interesting to see the reverse of the OP's coin because the damage does look to be more symetrical and deliberate rather than environmental like Coop mentioned.
Words of encouragement are one of the major food groups.
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We need to consume them regularly to thrive and grow.
