50 Pfg Adenauer black print, to the detriment of the post with twice 5 and 140 Pfg Heuss as well Berlin 50 Pfg Sauerbruch correctly franked on larger sized express messenger printed matter envelope from "RHEINBACH 12 5.1.76" to Bonn with arrival postmark used, although the black print not postally valid was, was the document unopposed transported, in this kind very rare and decorative curiosity