I personally think he looks Yorkie.
I have a 9 year old Yorkie who weighs 7 lbs and the people I got him from bought him from a Yorkie breeder and he is a purebred Yorkie.
When I took him to a groomer to get his nails trimmed they tried to tell me he was not a Yorkie and must be a silky because he didn't have enough hair on his ears to be a Yorkie. I looked at her and said "He is a pure bred Yorkie with papers." She was like "Fine, I will put him down as a Yorkie." Then she was like what does he weigh about 11 lbs. I said 7, he weighs 7 lbs and she looked at me as if I just told her that I weighed 100 lbs (I am overweight). She gave me that look like "whatever you say." I hope when she picked him up she realized how light he was. I had just had him weighed at the vet and he was 7.1 lbs.
I do think yours looks like a Yorkie though and I would just keep calling him a Yorkie. My grandmother had a 18 lb Yorkie named Muffin when I was growing up. Yorkies really do come in all sizes. Hers was a purebred and everything. All her dogs were purebred. She constantly had several little dogs at once. Mostly poodles, but occasionally a Maltese, Yorkie, Llapso, Apso, etc.
Just enjoy him and I am so glad you rescued one!
__________________  It's raining Yorkies here! LOL Teek  ,Rowan  , Raksha (Grand Puppy)  , Raelyn |