set six Rodney Kinsman steel "Omstak" chairs

Rodney Kinsman (b. 1943) is a British designer best known for pioneering industrial metal furniture and founded OMK (Ogleton, Moller, Kinsman) in the 1960s, a company that became central to British high-tech furniture design.  His iconic "Omastak" chairs designed in 1971 remain relevant today with perforated steel sheet seat/back and spender steel rod frames.  Four light yellow and two red - stackable.  This set produced in Italy by Bieffeplast, Padua. 1970s.  Sold as a set of six.