KOSCHENTIN, postal stationery card 16 Pfg dark grey-violet Steelworks and Dove of Peace 1929 with added 5 Pfg dark opal-green, 10 Pfg dark red-orange vertical pair Steelworks and Dove of Peace 1920 to Berlin, double-circle KOSCHENTIN 15 10 21 (Kr. LUBLINITZ), very neat central strikes, good condition