Paris HeadquartersSubmarine cable linking Paris to Rouen. Wooden base with an antique feather label. Length of the cable: 7 cmA. B.E. History: Two telegraph cables were installed before the siege of Paris by the Prussians . One to Rouen in the bed of the Seine but it was discovered by the Prussian army, on indiscretions of two local residents: they dredged the Seine between Saint-Germain-en-Laye and Bougival, went up the cable and cut it.