Chair Chair is metal with gridded structure & diamond shape. Piece includes orange toned seat cushion. Chair measures approx 33 inches wide 30 inches deep 30 inches tall. Chair, metal chair, mid century modern, mid century modern chair, Knoll Bertoia, Knoll BERTOIA chair, diamond chair, lounge chair, knoll BERTOIA diamond chair. Harry Bertoia (March 10, 1915 – November 1978) was an Italian-born American artist, sound art sculptor, and modern furniture designer. Bertoia was born in San Lorenzo, Pordenone, Italy. At age 15, given the opportunity to move to Detroit, Harry chose to adventure to America and live with his older brother, Oreste. After learning English and the bus schedule, he enrolled in Cass Technical High School, where he studied art and design and learned the skill of handmade jewelry making ca.1930-1936. At that time, there were three jewelry and metals teachers Louise Green, Mary Davis, and Greta Pack. In 1936 he