A pair of Sinus chairs in the industrial style designed by Karl Friedrich Förster for KFF from the 1990s. In original and very good condition. High quality workmanship in steel and natural leather. Rare industrial style. Pure form, minimalist aesthetics. The chairs are the embodiment of the best in modern design. The chairs are signed. This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution