Circle of Josef Danhauser | Side chair (one of a pair) | Austrian, Vienna | The Metropolitan Museum of Art
![File:Adjustable armchair, Model 670, Sitting Machine, designed by Josef Hoffmann, Jacob & Josef Kohn, Vienna, 1904-1906, beech, plywood, wood, brass- Museum für Angewandte Kunst Köln - Cologne, Germany - DSC09636.jpg - Wikimedia Commons File:Adjustable armchair, Model 670, Sitting Machine, designed by Josef Hoffmann, Jacob & Josef Kohn, Vienna, 1904-1906, beech, plywood, wood, brass- Museum für Angewandte Kunst Köln - Cologne, Germany - DSC09636.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/e/e0/Adjustable_armchair%2C_Model_670%2C_Sitting_Machine%2C_designed_by_Josef_Hoffmann%2C_Jacob_%26_Josef_Kohn%2C_Vienna%2C_1904-1906%2C_beech%2C_plywood%2C_wood%2C_brass-_Museum_f%C3%BCr_Angewandte_Kunst_K%C3%B6ln_-_Cologne%2C_Germany_-_DSC09636.jpg)
File:Adjustable armchair, Model 670, Sitting Machine, designed by Josef Hoffmann, Jacob & Josef Kohn, Vienna, 1904-1906, beech, plywood, wood, brass- Museum für Angewandte Kunst Köln - Cologne, Germany - DSC09636.jpg - Wikimedia Commons
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