Windsor chairs, with their archetypal vertical spindles, first emerged sometime during the 16th century. The American Windsor that we commonly see today is said to have been introduced in the 1730s. These classic chairs gave rise to a host of designs inspired by their prominent, vertical rail backs. From Mel Smilow’s designs in the 1950s to the contemporary Fly Series by Space Copenhagen, there is no question that spindle and rail backs are a timeless structural motif.