Don't be confused.. it is not an error. It is a damaged Nickel. It is what is call a Dryer Coin. Here is the Information - http://www.error-ref.com/dryer-coins/
That may be a good size die crack going along the timeline on right side, pretty tough to tell consider Condition and your single photo
Not a die crack. It's a seam where metal folded over. Read @paddyman98 link and it will make more sense. Hope this helps
Hi Melody. Welcome to Coin Talk !! where things aren't always as they seem. Even though this coin may not be a mint error, please don't be discouraged, keep searching, keep looking, and certainly keep posting and eventually you will find something nice. Here at Coin Talk !! we love helping new members understand why a particular find may or may not be a true Mint Error. In the future, please post full size photos of both the front and the back of the coin and, if necessary, close-ups of the area in question. These photos will help our members determine any aspects of the coin that may be errors or that may need further investigation. Melody, please be aware that the vast majority of coins posted on this site by new members are nothing more than damaged coins. If you are serious about coin collecting, and you haven't done so already, get yourself a copy of the Red Book. It's available from Amazon for about $15.00. Not only is it a valuable resource for coin collectors, but it is also a very interesting and informative read. Thanks again for posting, Melody.