Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - United States - Zeppelin Flights - 1925 (July 4), Airship (Z.R.1) Shenandoah, Governors' Conference Flight, cover sent from USS Patoka to Lakehurst, franked by Washington 2c carmine, circular ''via Air Mail Service USS Shenandoah'' in violet and two-line ''by U.S. Navy Dirigible ''Shenandoah'' in black, next day Lakehurst arrival on reverse, Michel #2, €750, Frost #ZR1-Bb, C.v. $1,000, Scott #554