This is Toby (also known as Tobes Magobes). We rescued him when he was 5 weeks old from a lady with a crate of puppies on the corner of the street my sister lives on. It was about 110 degrees outside and she had 6 puppies in a tiny crate, no water, no shade. She told us he was a terrier mix. I've only seen Toby's mama dog once, her owner was walking her outside. She was a taller breed, but I don't know much about terriers so it's hard to say. My guess based on his appearance is Jack Russel Terrier.
Any idea what his other half could be? My guess is his daddy was a stray; this I gather only from the owner's disgust and surprise with the puppies' existence. Pomeranian has been suggested, but his hair is pretty short, so I don't know about that.
He's currently 5.5 months old, 15 lbs at his last vet visit (last week), short hair. He is black with brown specks on his legs and behind his ears.