GLEIWITZ, 5 Pfg green, 10 Pfg orange-red, 40 Pfg green-olive Steelworks and Dove of Peace 1920 on colour picture postcard to Pretoria / South Africa, double-circle GLEIWITZ 19 5 20 * 1 c (OS handbook No. 089.5), rare cancel and destination, age and use marks typical of period