GLEIWITZ, 5 Pfg opal-green vertical pair, 50 Pfg dark grey horizontal pair, Steelworks and Dove of Peace 1920 on registered letter to Wiesbaden, cancelled with two different, both rare handstamps: double-circle GLEIWITZ 7 2 21 * 1 b (OS handbook No. 089.4) and double-circle GLEIWITZ 7 2 21 * 1 f (OS handbook No. 089.8), arrival (9.2.1921) on reverse, very unusual in this form, age and use marks typical of period