Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Liechtenstein - Zeppelin Flights - 1936 (May 6-9), Airship ''Hindenburg'' 1st NAF two covers and postcard, franked by Zeppelin stamps of 1fr carmine and 2fr violet, including complete set franking, tied by Triesenberg ''4.V.36'' ds, letter ''d'' red confirmation cachet and all appropriate markings, housed on pages from a Collection, VF, Sieger #408A, B, A/B, C.v. €470, Scott #C15-16