A link from a modellers site, conc. to the WWI, hundreds of photos conc. to Tanks, Artillery, and Fighting Men.
Just look at the section Paris Kanone at all...
The link: http://www.landships.freeservers.com/
Tons of interesting photos from the WWI.
Michael
P.S.
I stumbled over this link, searching for "Feldküchen", or "Gulaschkanonen" from 1914 - 1918...