Paper Knife Chair, 1955The Model 121 lounge chair is widely considered one of Kai Kristiansen's finest works from a long and celebrated career. The chair, later nicknamed Paper Knife, was designed in 1955 for Danish producers Magnus Olesen in Durup, North Jutland. It was a commercial success through the 1950s and 1960s and formed part of a collection together with sofas and an ottoman. Kai Kristiansen studied under Professor Kaare Klint at the Royal Danish Academy in