Vintage Lot of 4 Barbies 1966 & 1968 Ken Twist N Turn Malibu Skipper

Description

This is an auction for a lot of 4 Barbies from the 60s.  I do not know much about these that is why I'm selling them together. All dolls are well played with.
1.  1968 (made in Taiwan) Live Action (Blonde). Legs are discolored on the rubber. Legs do not stay bent. Broken knee joints. Hands & feet are in good condition. Back of right leg has hole.
2.  1966 (made in Japan) Malibu Barbie? Skipper? She looks younger.  Needs to be cleaned. Left leg does not bend.  Feet & hands in good condition.
3.  1966 (made in Taiwan) She has bent arms that can not be posed. Knees are both bendable. Hands & feet in excellent condition. Hair is matted. Very clean doll.
4.  1968 (made in Hong Kong) Ken doll. Molded plastic hair. Rubber legs are a bit discolored. Knees are bendable. Hands & feet are in excellent condition. Facial features (paint) are in excellent condition.
I have tried to describe to the best I could.  Please see all photos & ask questions. Thanks!