A Little History:
Léa Stein is often hailed as "the most notable and innovative designer of plastic jewelry of the 20th century".
Stein entered the fashion industry in 1957 working in textiles, and by 1965 had developed an interest in plastic. She worked with her husband, chemist Ferdinand Steinberger, to develop a process of layering very thin sheets of celluloid acetate and laminating them to form a "multi-coloured sandwich of plastic". Each 'sandwich' was baked for a long time, then cooled and cut into shapes. The process could take as long as six months. This technique allowed Stein to insert different fabrics such as lace and colors and textures into the plastic