What is this vintage dance hall movie clip from Led Zeppelin - Trampled Underfoot video

Who is the lady dancer or what is the film in this clip from 0.30 seconds - 1.45 secs please - link below -
Asked Jun 07, 2014
Edited Jun 07, 2014

TIP: If it's not your answer to this question, please click "Leave a Comment" button under the question to communicate with the question owner.