This is the picture of a doll my sister received in the late 50s or early 60s.
It has no markings other than a straight line on the buttocks. The doll is about 20" - 21" in length. It's very similar to a Madame Alexander Cissy doll that we also have.
Please let me know if you need additional pictures of a specific area on the doll. Your assistance in helping us identify the doll would be appreciated.