Two chairs have the Cassina stamp and two lack it. According to its former owner, the entire series was bought in the same place and at the same time. On the other hand, as can be seen in the photographs, all the chairs are identical in terms of dimensions and proportions as well as the finish. We have found no difference between the two chairs that have the Cassina stamp and the two that do not, so we assume that the entire series has been published by the Italian manufacturer. 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