There's at least one set of stereo images, but it appears that the rest are just individual plate negatives. A quick Google search on this camera indicates that it used 24 half-size plates to obtain 12 stereo images, via a rather complex mechanism to cycle the exposed/unexposed plates inside the magazine.
Don't know about the age of the aircraft and bomb, but a number of media outlets have incorrectly reported these images as being over 100 years old, when the negatives could have been made as late as 1918, or even a few years immediately after the war.
Yes, I doubt they're aware that WWI was fought from August 1914 to November 1918. Add the media penchant for hyperbolic manure and this is what you get.