Couple dance in the 1910's. Fantastic style, film15

Dance. Ballroom Dancing routine “ Waltz Classique“ A couple. He wears tights and a waistcoat and long-sleeved shirt, somewhat ballet style. She is very Isadora Duncan, in a classical almost toga affair and fillet-style headband. They twirl then start. It is a fairly bouncy dance, with “down on one knees“ and kicks to the side. A few kicks and back ends. Precious little of what we would call a waltz! A reminiscence of the ballet