Not sure if you have the rest of the picture but I managed to find this which may assist with discussion on where the location is and ultimately what the post is all about.
(For Discussion only)
There is a larger shot here
and another shot labels the image as
"Lunch of French soldier in World War I, Royal place. (Reims. Marne. France".
(I did a search of google images under 'french soldier 1914-1918 colour' and it came up a few times there)
And.....in the centre of this picture with the large white ball cover, I believe (hope) is your lamp post!!!
(Probably doesn't help with finding one but at least you know what is looks like when you start to SCRATCHBUILD
Sorry about the disjointed post but I copied and responded as I found images.