Rare dining chairs by Miroslav Navratil, made in former Czechoslovakia, 1960s, set of 4

Elegant and rare set of 4 dining chairs designed by miroslav navratil and made in former czechoslovakia in the 1960s. The chairs feature a clean, geometric, minimalistic design. The upholstery is made of purple fabric and black faux leather and the wooden parts are provided with nice brass details.the set is in good vintage condition with only minor signs of use (one of the chairs has a small scratch on the seat, please see photos). H seat: 43 cm.