Each “1919” armchair is numbered. The supporting structure is made from solid seasoned beech. The seat, backrest and armrest spring system consists of hand-tied steel biconical springs attached to jute belts. The seat is padded with rubberized horsehair while the backrest and armrests are in hand-shaped vegetable horsehair. The seat cushion is in goose down. The backrest design is obtained with manual capitonné processing.