Zeppelin mail

The early flights did not use any special markings; the first was an oval reading "LUFTSCHIFF / SIGNALPOST" around the edge and "Z III" in the center, used on LZ 6 (Z 3) from August to October 1909.

The Los Angeles carried mail between Lakehurst, New Jersey, Bermuda, and Mayagüez, Puerto Rico, several times.

Within weeks of its first flight in September 1928, the Graf Zeppelin carried the first airmail to go directly from Germany to the US and vice versa.

Although LZ 129 Hindenburg is most famous for its fiery end, for the 14 months of its existence, it carried considerable amounts of mail overseas, and many of those are readily available today.

Most of the 17,609 pieces of mail on the last flight were destroyed in the fire, but a handful were recovered, and today they are highly prized crash covers.

Postcard flown on the first North American flight of the Graf Zeppelin (1928)
Letter on the first Germany flight of the Graf Zeppelin (1928)
US 65-cent "Zeppelin" stamp, one of three values issued specially for the May–June 1930 Pan-American flight of the Graf Zeppelin