This chair was purchased in L.A. in the 1970's from a modern furniture store. Not exactly sure if it's manufactured by Knoll. Measures 29 5/8" wide x 33 1/2" deep x 28 3/4" tall. From the floor to the top of the chrome seat is 12". The cushion is 4" thick. The chair has been rechromed and reupholstered. I did find this piece of info regarding the authenticity of the chair: This Knoll-licensed piece of mid-century modern furniture won the Museum of Modern Art Award in 1977. A genuine Knoll piece will display the signature name of "Mies Van Der Rohe" on the chrome frame, usually on the rear leg on the left hand side. It should be noted that Knoll simply owns the manufacturing rights in America, and Barcelona chairs were initially made by other mid-century modern furniture manufacturers; thus, some pieces not bearing the Knoll stamp may still be authentic Barcelona chairs.