Unknown to me that is. LIFE photo circa 1937. Hopefully someone will recognize it.
I thought the envelope looked influenced by the larger Parseval airships...all too late though. Perhaps its a Siemens Schuckert model? I have no idea.
http://tbn0.google.com/hosted/images...1497a55e_large
Take a look and put in your 2 cents. Any suggestion will be more than welcomed.
Cheers und Frohe Weinachten!
Rod