This is a set of Model 350 ladder-back dining chairs designed by Poul Volther for Soro Stolefabrik in Denmark in the 1960s. The chairs are made of soap treated oak and are in excellent condition. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution