BRANITZ, 5 Pfg green horizontal strip of four and horizontal pair, 20 Pfg blue block of four, Steelworks and Dove of Peace 1920 on registered letter to Bonn, forwarded to Mülheim a. d. Ruhr, single-circle BRANITZ 24 3 21 (OS handbook No. 035.1), Bonn arrival (27.3.1921) and Mülheim arrival (28.3.1921) on reverse, age and use marks typical of period