A rare folding double armchair attributed to Thonet, produced around the 1890s and originally used in the National Theatre in Prague. This exceptional piece represents the height of late 19th-century bentwood craftsmanship and design innovation. Constructed entirely from bent beechwood, the chair showcases Thonet’s pioneering steam-bending technique, allowing for elegant curves and structural lightness. The double-seat configuration was designed for public interiors such as theatres and concert halls, emphasizing comfort, practicality, and refined form. The piece remains in original, undamaged condition, retaining its historical integrity and natural patina. A museum-quality example of Austro-Hungarian furniture craftsmanship and a rare survivor from the early history of industrial design. Specifications Designer: Thonet Manufacturer: Thonet Period: 1890s Style: Historicism / Late 19th-Century Bentwood Design Material: Steam-bent beechwood Color: Natural beechwood Condition: Excellent vintage condition; light traces of age consistent with use Estimated weight: approx. 12–15 kg Dimensions Height: 88 cm Width: 95 cm Seat height: 45 cm Depth: 55 cm 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