The Avedon Foundation—an entity established by the late fashion photographer Richard Avedon to serve as an archive of his oeuvre—has refused to authenticate a series of unsigned prints from the artist’s last major photo series, In the American West. In 1985, when the series was produced, Avedon called on Ruedi Hofmann to serve as his master printer. Hofmann claims that in exchange for his work, Avedon promised him a set of prints from the series, which were never signed.