Armchair model 718 F, Otto Wagner, Vienna, made by Gebruder Thonet, c. 1905-1906, beechwood, aluminum, caning under upholstery - Montreal Museum of Fine Arts - Montreal, Canada - DSC09152, Otto Wagner

Exhibit in the montreal museum of fine arts - montreal, quebec, canada. The design of this object is not eligible for trademark protection. Rather it might have been eligible for industrial design protection, but if so, that protection has expired; see industrial design right for more information. Hence if the design was ever protected, its design protection has now expired.