Black "Mama" Doll

This child's doll appears to be from the 1950s, but doesn't contain any manufacturer’s marks or other identifying information. 

Her head is ceramic, porcelain or China, and her arms and legs are a "composite" material which contains vinyl, possibly, but definitely not plastic.

Her clothing is original, I believe, and possibly cotton.  She has a dress, bloomers, and a bonnet.

I was told the doll might be a "Mama" doll, as it may have had a voice box in its chest that made the sound “mama” when the doll was tilted to the front or back.  This doll either didn't have a voice box, or it isn't working!

At some point during its "life," the head came off, but other than that, the doll is in its entirety!

Poor