Two documents WW1 combatant German Police POW

Wilhelm Gaertner, Hauptwachtmeister of the Schutzpolizei (rural police) in Mülheim, WW1 combatant.
1) Hindenburg Cross for ww1 combatants with Swords, duplicate issue, 1.11.34.
2) Document stating that he was in POW camp in England, 18.7.36. Stating he was 28.9.-4.12.1918 in a POW hospital in Belmont (Surrey) and 4.12.1918-4.11.1919 in POW camp Pattishall-Towcaster.