[pursuivant]

Weren't those guns called Paris guns? I think Germany had one in WWI but it took so long to load and was rather inaccurate because of the range that it was eventually removed from service. Good concept but needed a little more time on the drawing board. Does show that the technology was pretty impressive, though. look how bif that barrel is and so little support from the gun carriage.

The "Paris Gun" was indeed a WWI weapon. Essentially, it was the Kaiser's V-2, since it could only hit city-sized targets and was intended as a psychological, rather than battlefield weapon.

http://en.wikipedia.org/wiki/Paris_Gun