Mersch - On our march to the Rhine we crossed over this bridge in Luxemburg [sic].

The image above might be the 1st Division.

Part of the Armistice terms was that troops would not cross the German frontier until Dec. 1, 1918. The 2nd Engineers were at Larochette, Luxembourg on Dec. 1. They crossed the Sauer River into Germany at Wallendorf. This photograph was taken between Geichlingen and Oberweiler, Germany. Google Map

At Pelm, Germany December 7, 1918