Value of a Porcelain Doll?

I have a doll that is porcelain, except for the torso and upper thighs, which are stuffed. I think my mom bought it at an antique store, along with a little upholstered chair. These were just for whimsy. The only marking on it is written in black ink on the porcelain upper back. It says "Baby's First Doll", under that it says "Katherine 2/50". It is 17" long and is constructed mainly for sitting position. She's a 'baby' and has beautiful eyes with real upper eye lashes.

Her hair is strawberry blonde and is tied up on the top of her head with a ribbon around it. She's wearing a beautiful tan colored long sleeve dress; all lace with pearls and sequins sewn onto the top front of it. Does anyone know anything about this doll; the value of this doll, etc.? Or can you direct me to someone who might know? I don't have the technology to include a picture. Thanks.

By Carol