SCHOPPINITZ 21.10.1921 ZKr (OS handbook number 317.4) on registered letter with 5 Pfg opal green two single stamps, 10 Pfg orange red two single stamps, 15 Pfg gray violet, 20 Pfg blue, 25 Pfg dark brown ironworks and dove 1920 to Solingen, time typical traces of age and usage