Vintage Danish Bar Stools by Piet Hein for Fritz Hansen, 1960s, Set of 2

Lovely set of two bar stools by Piet Hein for Fritz Hansen, Denmark, 1960s. These stools have chrome-plated frames and a brushed aluminum base with its original leather upholstery. One of the best modern bar stool designs of the 20th century. Labeled underneath. This piece has an attribution mark,
I am sure that it is completely authentic and take full responsibility for any authenticity
issues arising from misattribution