It may appear to look that way to you but your coin is PMD (post mint damage) it isn't a Mint Error.JMO Dave
Welcome to Coin Talk. There are a lot of knowledgable members contributing to this site and you will learn a lot. Your nickel was ground down on the obverse. Probably some bored kid. Just PMD.
As you learn how coins are minted, it becomes easier to know what is and is not possible to happen to them at the Mint