We offer here an office stool that was exclusively produced by Thonet. This swivel stool is mounted on the "patent" base, the patent that conceals the height adjustment screw... furthermore, this stool with backrest is covered with wood veneers that feature specific patterns to the brand. In the catalogs from 1895 to 1906, there is a patent filed by Thonet that generally conceals the screw system of the so-called office stools (Drehstockerl), and this system is still mounted on a tripod base. (see attached document) A tiny fragment of a label is found beneath the seat. Dimensions: Seat diameter: 38 cm - Seat height, from 47 to 58 cm. Minimum total height: 80 cm. More photos and information available upon request. Delivery in France and Europe or pick-up in Alsace. Number of pieces: 1 Color: Walnut Type: Stool with backrest Brand: Thonet Period: 19th century and earlier Subtype: Piano Country of origin: Austria Style: Bentwood Material: Beech