Heuss and numeral 1960, 8 Pfg plus Z plus 1 Pfg in type YII in mixed franking with 1 Pfg plus 5 Pfg in type II as properly franking on address verification from "Kassel" to Oberhausen, photo expertize H. D. Schlegel BPP (2018) : "quality: traces of use" (by a commercial document entirely insignificant), Michel 460.- plus