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Heritage designs the future. N. 811 - design by Joseph Hoffmann, 1930 - Gebrüder Thonet Vienna GmbH (GTV)
File:Manifattura jacob & josef kohn, joseph hoffmann, sedia per la sala da pranzo del sanatorium westend a pürkesdorf, vienna 1904-05.JPG - Wikimedia Commons
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File:Wolfgang hoffmann per howell manufacturing co., sedia a dondolo, 1934 ca.jpg - Wikimedia Commons
File:Manifattura jacob & josef kohn, joseph hoffmann, sedia n° 728, creata per il cabaret fledermaus a vienna, 1904 ca.JPG - Wikimedia Commons
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