What kind of cat is my cat?

We know she is not a Bombay or a Tuxedo-Cat. She is fully black, and has one little dapple of white fur on her chest. She also has a 'heart'-shaped patch of white fur between her back legs on her belly. (I don't know if this will help any, but it may) She is 11 years old and is starting to grow very few white hairs on the back of her neck. and one of her paws is spackled with very dark gray fur.