Cat­a­logue No. 6 pub­lished by the S. A. Loevy bronze­ware factory in the 1930s con­tained a variety of door fit­tings by Rachlis, Grenan­der, Behrens, Wa­gen­feld and Paul, where a cir­cu­lar neck was com­bined with a flat grip section. The FSB 1021 is an equally time­less vari­a­tion on this design prin­ci­ple.