I take it the clues at the bottom were no help?

Here’s a French website with the same image:

http://aerostories.free.fr/juniors/queven01/hist/

If you read french, you may be able to find out more about it. However, I don’t read french. Sorry.

Also this website seems to claim copyright for a photograph of the same airship:

http://www.scienceandsociety.co.uk/results.asp?image=10195190&wwwflag=2&imagepos=1

Thanks folks!

Sadly, I think it might actually be in the book “Note sur l’Aérostat à hélice” bu Dupuy de Lome, but I’m having trouble finding a copy. I’m hoping it’s also in “Zeppelin: rigid airships 1893–1940”, which I can find a copy of.

We’ll find out, I guess.

If you refer to dirigible, though, you might want to spell it that way and not the way it appears on your linked page.