Desk chair model 2311 with anthracite grey fabric from the “Efficient” series designed by Toon de Wit in 1960s. Both the seat height and the backrest are adjustable. This comfortable De Wit office chair has been reupholstered with new foam and black fabric from De Ploeg. Dimensions: h x w x d = 86 x 46 x 48 cm. Adjustable seat height = 42 – 58 cm. Marked: De Wit (see photos). Reupholstered, Normal wear consistent with age and use This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution