From an Ebay seller from Brentwood, California. An unidentified woman took her dog to the McManus Brothers studio in Traverse City probably in the 1880s or 1890s. 

A woman and her dog,

Back of the small photo.

 She is seated next to a table with a rug draped over it. The painted backdrop is visible behind her. She wears a very heavy looking dress. Her dog is obviously interested in something nearby.

This is only the third photo I have purchased that has a dog in it. I really like it.