20 Pfg. postal stamp in the vertical block of 10 from the corner of the sheet with complete printers mark "M 26012 2" and 2 gutter approaches at the bottom on cover the 2. weight step from Katowice 19. 5. 22 with correctly franked additional franking 20 Pfg. and 80 Pfg. postal stamps to Berlin Wilmersdorf, small margin traces, on cover in fact rare!