This is a very famous chair, model B-310 VAR, that was manufactured in the 60's in Poland. These chairs were produced mainly for export to other countries with a limited number available to local market. The chair has undergone a complete restoration process. It has been stripped down, all the insides were replaced, foams, inner linen, support belts and re upholstered in black boucle. The shape has been kept in every detail as original. Wood has been sanded, stained and secured with matt varnish exposing beautiful patina. Fabric used is of high quality. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution