Callot Soeurs circa 1918 Silk The couturier Madeleine Vionnet was apprenticed at Callot upon her return to Paris. It was here that she refined her technique in couture. Callot Soeurs clothing was known for its exotic detail. They were among the first designers to use gold and silver lame to make dresses. During the 1920s they were one of the leading fashion houses in Paris, catering to an exclusive clientele from across Europe and the United States.