The cover received a magenta First Round-The-World Flight cachet and a green flight/Received cachet backstamp on 08/29/1929 - Friedrichshafen. The cover has a green Lakehurst flight cachet (08/29/1929) on the back. This is a nice example of a Round- the- World cover with nice franking! This cover had an interesting enclosure! It is a piece of Letterhead stationery from the Chisolm & Chapman brokerage company in NYC.On the stationery are 33 signatures. Several of them are identifiable: Baseball player Joe Bush, Henry Ford, Al Smith and racketeer Frank Calise. Due to the number of signatures, this must have been a banquet or special dinner party probably held by the Hoffmans whose names appear on the Corner card and stationery. These folks are probably part of the 1920s & early 30s who's who in NYC. The item "Graf Zeppelin LZ-127 First Round the World Flight with letter/signatures" is in sale since Saturday, February 16, 2019. This item is in the category "Stamps\United States\Covers\Event Covers\First Flight". The seller is "launchpad32" and is located in Sugar Run, Pennsylvania. This item can be shipped worldwide.