Ib and Anne Arberg left Denmark for Sweden in 1967. They founded Arberg and Arberg in 1973 and designed furniture together. Most known is the "Parrot chair", designed for ABRA Möbler. Source: Siesing, Andreas, Svenska 70-talsmöbler: i plast, stål, furu och manchester 1969-1980, Lindelöws bokförlag, Göteborg, 2021, sid. 309.