1995 Lincoln cent

I believe these bubbles on zinc cents are caused by gas coming up from the cent and causing bubbles sometimes even pop I may not be using the right terminology but I think I'm in the ballpark and how can zinc cause gas? this should be interesting

 

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They are known as plating blisters, read about it here.
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http://www.error-ref.com/blisteredplating/

 

Burping Zincoln

 

Once that plating blister pops the zinc starts to rot.

 

Thanks everybody even though I didn't put it in the right terminology I thought that's what it was

 

Jipe, For your info, compare this cent with your previous 1971S where you asked about doubling. Notice how close the L in Liberty is to the rim in the 1971 compared to this coin. That is due to overuse of the 1971S obverse die which causes the surface to extreme slowly spread from the center to the edge. This can cause the lettering ( especially close to the edge ) to spread outward from the center of the coin and appear like doubling. This is called "Die deterioration doubling" and is quite common in certain years. Jim

 

Thank you kind sir as I read your reply and study the pictures I can see what you're talking about you guys are good out here