Paul Schürmann, né le 25 juillet 1895, 06h00 à Gütersloh
[8.23E 51.54N / 1E00, 05h00 T.U.]

Auteur :

Photograph taken by Official War Photographer at an Australian Advanced Dressing Station near Ypres in 1917. The wounded soldier in the lower left of the photograph has the "thousand yard stare" indicative of shell-shock.

Given that this photo was taken 100 years ago by an employee of the British Government, I believe that copyright has expired and it is now in the public domain.
Crédits : See below
Licence : Public domain