RATIBOR 6.5.1921 ZKr (274.17) on cover with 20 Pfg blue, 40 Pfg green olive postage stamps issue smelting works and peace pigeon to Munich, stamp with perfin (perfin) "F. P. " (A. B. = Felix Przyszkowski wine wholesaler, Beuthen O. S. Ratibor Gliwice, OS handbook number 7), transport traces