Is this a Lilli Bild Type Barbie?

25 years ago I purchased an amazing collection of vintage Barbie dolls from an estate sale. The deceased woman had only the most collectable Barbie-color magic NRFB, Talking Barbies NRFB, American Girl Barbies etc... I give you this background because there is a Barbie I have no idea if she is a Lilli Bild or a copycat or what. I have found 3 others that are similar but not the same as this one. She has her original up-do and has a Barbie markings body. Any direction or info is appreciated. Markings on rear: C 1958 Mattel, Inc. U.S Patented U.S Pat. Pend.