What kind of dog is my dog?

[iluvterriers]

Just curious as to what my dog appears to be. We've had her since she was a pup but we have only a few ideas as to what she could be.

She is a small dog

She is 2 years old and around 20lbs.

She is a very good dog. Very lazy dog inside but outside she has a lot of energy. I know what they said her mother was but other than that I am clueless.

Thanks

Here she is as a puppy





Here she is as an adult: