Does anyone have a good link for what causes gas bubbles?

Log in or Sign up to hide this ad.

Improper Copper Plating
of the Zinc Planchets

 

Lincoln ate too many beans ?

or maybe ...

As explained by coppercoins:

"...a common result of a problematic plating process used at least until 1988 by the US Mint. It involves a mix of improperly washed planchets, contaminated plating material, and plating at the wrong temperatures. Your coin has gas bubbles trapped underneath the copper plating that welled upward when the coin was struck. There are tons of these in circulation, and in fact are difficult to avoid completely in some issues, especially in D mint coins from 1983-1986. They seem nearly impossible to find without this effect to some minor degree."
https://www.cointalk.com/threads/wh...penny-bubbles-in-places-like-this-one.171241/

 

Do you mean other then sitting in the tub

 

I wouldn't call those Gas Bubbles.. Those are blisters caused by Environmental exposure.
Gas Bubbles and Linear Bubbles occur when Minted.

 

Your explanation was a good one. Now that i think of it. The d mints seem to be loaded with them.

 

A poor idea compounded by substandard execution.

 

Yeah, if Lincoln ate too many beans that would create excessive gas bubbles.

or ...
did you mean the other explanation ????? or Paddyman's

 

And in Philly, the gas escapes the Mint and wafts into downtown. You can smell it.

 

You. The educated one. Beans was good too. Liked paddys too. I also liked kurts. Not sure he was trying to be funny about philly. But in my sick mind i laughed harty on that one. You members are the fun ones

 

Thank yall,lol

 

Satisfied customers always tell their friends. Just don’t say anything to anyone thinking they’ve found a “silver penny.” Puh-leez.

 

K

 

Lol

 

https://www.finishing.com/424/58.shtml