Excerpt from the Met Costume Institute:
Evening dress
spring/summer 1938
Madeleine Vionnet French
Though there are separate specialists for applied braid and fringe, known as the crépinières, Vionnet chose in this instance to employ an embroidery of individual graduated lengths of silk thread passed and looped through the fabric, with each thread forming two drops of fringe. The scallop arcs constitute the sole decoration of the dress.