GNADENFELD 18.3.1921 ZKr (090.1) on registered special delivery letter with 10 Pfg orange red, 15 Pfg dark gray violet, 25 Pfg dark brown, 60 Pfg blue, 1 Mark rose lilac postage stamps issue smelting works and peace pigeon 1920 to Chemnitz, arrival postmark ZKr CHEMNITZ HILBERSDORF 19.3.1921 at back, the letter was at three sides opened