S24353

North America Flight 1936 - rare 2 and 4 Mark Chicagoflight Zeppelin stamps with very clean postmarks 5.10.36 and special airport registered label on cover sent by registered mail and carried by airship on it' s tenth north america flight to New York (arrival postmarks backside) and then back to Germany (arrival postmark), very good quality, Sieger 441 B, Michel Zeppelin specialized catalogue 45 c