Set of 6 vintage Ercol Windsor model 400 chairs

Set of 6 vintage English dining table chairs. The Ercol chairs are Windsor model 400. Beautiful set marked on the bottom in the wood (not all chairs). The seat is made of elm wood, the frame is beech. From the late fifties, early sixties. The condition is good considering the age, there are some signs of use after 60 years of use, but the overall condition is really good. One chair has some 'prints' in the seat, see last photo. The dimensions are 44.5 cm seat height, 40 cm wide and 85 cm high.