The border points in this report are located close to the Mediterranian Sea at the French-Italian border, just west of the Italian village of Grimaldi.  Source: Gèoportail, France.

This Italian cadastrial map also shows how the boundary runs together with the small stream.  Source: Geoportale Nazionale, Italy

On this orthomap the positions of the French-Italian border markers 114 – 114/7 are found.  The two supposed markers on the railway bridge, 114/4 and 114/5, are only supposed to be located on the northern and southern middlepoints – therefore they are with question marks.