KATTOWITZ, 5 Pfg green block of four with horizontal gutter (reverse), 10 Pfg orange-red block of four with vertical gutter and two singles (front), Steelworks and Dove of Peace 1920 on letter to East Drange, NJ / USA, double-circle KATTOWITZ 23 10 20 * (OBERSCHL) f (OS handbook No. 141.12), rare franking and destination, age and use marks typical of period