Luxembourg-Ville, 28 Aug 1918,
to Geneva, Switzerland
An official letter from the Luxembourg government Service Officiel Renseignements [Information Agency] posted shortly before World War I ended. It was sent to the Red Cross Agency in Geneva, Switzerland, after having been opened and censored by the German military censor in Trier, Germany.
The many markings and notations document the diligent work by the Red Cross to provide information on victims of war. For more about the Red Cross in World War I, see my post here.
Here are scans of some of the markings: