Extreme Heat damage to the clad layer. Not a Mint Error Probably a torch that created the bubble underneath the Clad
Mint-made errors are errors in a coin made by the mint during the minting process. Groups of coins with distinctive characteristics are known as varieties. The term variety applies to coins with both intended and unintended differences while the term error refers only to coins with unintended differences.
Authentic error coins should not be confused with coins that are damaged after being minted, which is known as post-mint damage (PMD) or post-strike damage (PSD).
