Reher's Jahrbuch für den Pferdesport, 1917, p.31 (Graditz/Panzerkette); 1925, p.35 (Altefeld/PREISFRAGE); The Graditz thoroughbred mares were moved to Altefeld around 1920, as Graditz was closed to thoroughbred breeding until approximately 1930. In 1930, the mares returned to Graditz and Altefeld was closed.;