>>3624262Looks like it's WWI, going by the three uniformed fellows looking decidedly un-French. Might be mistaken, but I'm guessing they're American going by the uniform, so that would mean summer 1917 or 1918. Very few American soldiers were present during summer 1917, so that might be a reason to photograph them as a rare and novel sight, as opposed to summer 1918 when there were 1 to 2 million of US soldiers on the Western front.
Pretty interesting historical material, do post more if you have.
