The grey tunic looks German WW1 (Bavarian Artillery?) but the insignia on the hat looks like the Panzer division.
I note that the guy in the foreground is wearing a gray suit, but the hat is green.
Definitely prop stuff.
One of the things that I find amusing about Internet "found historical photos," is that women are usually made up with modern styles. I would not be surprised if they were originally done as fashion shoots, like this one.