I found a dime recently that appears to be copper. After researching it, the closest thing I could find was missing clad. I don’t know anything about coins, just knew that this dime caught my eye cause of the odd color. It is always visibility thinner than a normal dime. Any help to identify and appraise if appraisal is warranted would be greatly appreciated.
It is considered Environmental Damage to the Clad Layer. Exposure to the elements toned the Cupro-Nickel clad. Only worth 10 Cents. Not a Mint Error
Missing clad layer usually just involves just 1 side of a clad coin. Here are examples from my collection - The other sides not shown look completely normal.
That's an illusion caused by a greater than normal strike on the bottom dime. Higher rim. The darker Dime would be the normal strike.