Not an expert but I would say close to very good condition for age 66 years as follows:

1966 - Made in Japan

• Twist N Turn has not had hardly any twisting and turning
• No marks or dents on body we can see -Tight legs that click easily & firmly into the 3 poses
• No dents or bites on feet
• No dents or bu trees on hands
• No green ear
• Face paint looks bright
• Arms not loose or floppy & hold position well
• Blonde hair looks in flip style condition - no missing plugs
• Original bathing suit that came with the first generation of this body / Barbie T N T.

After the movie my daughter has decided she will only keep the Superstar so this is now surplus to requirements.