Early antique porcelain baby doll by J.D.Kestner
Made in Germany
ca. 1900 -1915
Here is a great example of a Kestner Baby mold no. 7 (not marked). 
The doll has no J.D.K marking.
He has brown painted eyes, incised eye liner at his upper eyelid and one stroke wavy eyebrows 
He also has a original Kestner baby body.
A gorgeous looking little baby doll.

Bisque head with molded and painted hair
Brown painted eyes
Painted eye brows
Open closed mouth

no chips, no cracks

Perfect Kestner baby body
Dressed in a vintage handmade baby suit with vintage underwear

Measurement: ca. 26 cm / 10.2"
There is even more information in the Book: 
Kestner - King of Dollmakers by Jan Foulke, page 164