This is a 1964 Ponytail Swirl Barbie. They had a limited run of about two years. They were basically the last dolls to represent '50s glamour. It makes them really valuable to collectors.

At over 60 years old, Barbie is a true vintage classic ... Barbie No. 1 and Her Iconic Design The first Barbie, known as Ponytail Barbie, wore a black-and-white striped one-piece strapless ...