Franz Xaver Bergmann (1861–1936) was the owner of a Viennese foundry who produced numerous patinated and cold-painted bronze Oriental, erotic and animal figures, the latter often humanized or whimsical, humorous objects d'art. Noted for his detailed and colorful work, and signing either a 'B' in an urn-shaped cartouche or 'Nam Greb' - 'Bergman' in reverse. These marks were used to disguise his identity on erotic work