Recently I noticed a beautiful motorcycle in one episode of the Young Indiana Jones TV series. The story of this episode takes place in the battle of Verdun, France in 1918. Is anybody able to identify this bike?

I moved your topic to the "contribution" section, as the "vehicle identification" section is made for providing links to help to identify vehicles, not for asking to identify vehicles
I added the photos to the site:
http://www.imcdb.org/vehicle.php?id=28506
so it will probably quickly be identified by our two bike specialists