Take her clothes of, and you should see the marks of the maker either on the back, or the back of the head. Dolls are quite collectable. I found a vintage looking doll once, and I contacted a local doll collector. She said that as anything else condition and originality was everything! Maybe this one is not a winner, but I would find out as much as possible about her, in doing so, you'll prepare yourself for when you do find the collectible ones! Good luck!
RJA