Set of four dining chairs, 1960s Finland

Rare set of 4 dining room chairs attributed to the finnish designer ilmar lappalainen and asko, 1960s finland. The special chairs have a curved anodized aluminum frame with yellow leatherette seat and backrests. The seats are not marked. The seats bear some resemblance to the sm0301 by pastoe / pierre mazairac. Good to very good vintage condition. Light signs of wear on the underside of the aluminum legs. Skai leather and filling is in good to very good condition.