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

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. As a utilitarian object, this work is not subject to copyright laws. In finland, the eu, and russia, design rights are granted for a maximum of 25 years. This protection period has passed, and hence this work is now in the public domain.