Ever item you mentioned is a mint error. However none of them apply to this cent as your cent is damaged.
Hey folks, I am new... I don't know the proper etiquette. My penny is still a penny so it is basically worthless. Thanks for letting me know it is post mint damage.
Just keep this in mind.. not everything that looks different, strange or weird is automatically a mint error. There are so many different ways coins can become damaged or altered. Keep posting and in time you will learn the differences.