4 Italian chairs in chrome and leather 1970

Suite of 4 chairs from the 70s. It is very likely that it is a Gastone Rinaldi model (or at least very close). The structure is in chrome-plated tubular steel. The seat and back in soft tan leather. The leather is patinated, with small traces of time which gives it a certain charm. There are color differences in these chairs: 2 slightly lighter and 2 a little darker (visible in the photos). The whole thing is in good condition, the chrome needs to be cleaned but not oxidized. H chair: 80cm, h seat: 46cm, l chair: 46, teacher seat: 42cm, weight of one: 6500g, 051223/1+.