I have found very little information at all about the CCC station at Le Havre and
the two cables that undoubtedly went there. The
offices were at 112 Boulevard de Strasbourg - a central location in Le Havre. (Le Havre centre was very heavily
bombed in the war but the cable station was presumably restored with everything else.)
White Archive has pictures of a cable repair at Le Havre in the 1950s.
The Le Havre cables were diverted into Dartmouth during WW2. It has been suggested to me that the
older one was not reconnected after hostilities ceased.