10 and 20 Pfg Bach seals always as correctly franked single franking, 10 Pfg on local letter from "STUTTGART 17.12.50", 20 Pfg with upper margin on long distance cover with special cancel" (14 b) FRIEDRICHSHAFEN / first travels of the ZEPPELIN AIRSHIP 17.10.50" to Hanover, good legitimate condition, Michel 200.-