Well, so far we know that:
- It's an American flying machine
- It dates from 1904
- The design (or at least a variant of it) was patented, but not in 1904
- It's not listed anywhere within AeroFiles.
New clues:
- It's steam-powered.
- And the inventor was also granted a patent for the steam engine. Both the flying machine and steam engine patents were granted in the same year.
Once someone answers the quiz, I'll upload a small cache of material I have on this otherwise anonymous airship.
Cheers,
Paul