The Series 7 chair, designed by Arne Jacobsen in 1955 and today one of Fritz Hansen's most frequently knocked-off products.  Photo 1 of 4 in Fritz Hansen on Knockoffs and Authentic Design

Fritz Hansen on Knockoffs and Authentic Design

1 of 4

The Series 7 chair, designed by Arne Jacobsen in 1955 and today one of Fritz Hansen's most frequently knocked-off products.