Original olive tweed upholstery and ebonized wood frame.Knoll label to the underside.Provenance: The Estate of Royce G. Engel (1930-2023)Royce G. Engel worked as an innovative mechanical engineer over the course of his long career that was spent mostly at General Motors, McDonnell Douglas and Engel Systems (that he founded in 1976). In the midst of those years dedicated to a wide variety of engineering projects, from 1959 to 1962 he worked as the Director of Technical Research at Herman Miller, an office furniture and residential furniture manufacturer based in Zeeland, Michigan. Engel holds patents as co-inventor for two highly successful furniture product innovations assigned to Herman Miller: the Herman Miller Furniture Comprehensive Storage System Bracket and the the Herman Miller Furniture Dress Strip. In his innovative and influential position as Technical Center Director, Engel stood at the nexus of Herman Miller furniture prototypes, designs and collections.Seat height: 17 inches; Back height: 31 inches