Piculiar representation of the Weimar Republic flag.
Reverse
訪日記念 - Commemoration of Visit to Japan
ツェッペリン船号 - Zeppelin ship No. (but no number)
About the LZ-127 and its 1929 round-the-world flight
en.wikipedia.org
Interesting short documentary.
At 1:03-1:05 we see Hugo Eckener https://en.wikipedia.org/wiki/Hugo_Eckener with just received merit badge from Imperial Japan Aviation Association.
About the badge
Japanese postcard.
Inside the hangar in Japan.
Photos from the book Mit "Graf Zeppelin" um die Welt/Around the world with "Graf Zeppelin".
Source.
Reverse
訪日記念 - Commemoration of Visit to Japan
ツェッペリン船号 - Zeppelin ship No. (but no number)
About the LZ-127 and its 1929 round-the-world flight
LZ 127 Graf Zeppelin - Wikipedia
Interesting short documentary.
At 1:03-1:05 we see Hugo Eckener https://en.wikipedia.org/wiki/Hugo_Eckener with just received merit badge from Imperial Japan Aviation Association.
About the badge
Japanese postcard.
Inside the hangar in Japan.
Photos from the book Mit "Graf Zeppelin" um die Welt/Around the world with "Graf Zeppelin".
Source.