Bertoia Bird Chair by Harry Bertoia for Knoll. The seat and base are constructed of welded steel rods in polished chrome or rilsan black or white. Bertoia Bird is a chair designed in the '50s, but still very contemporary. Unmistakable stylish and luxurious for a chair apparently lightly. The designer Bertoia created a chair sublime with an industrial material for those times, elevating it beyond its normal utility into a work of art. In this version, it is a relaxing seat. It adapts to all types of interiors from the living room to the bedroom, both contract. Knoll logo stamped into the back of the base.