Pulled the fork tonight, and found this script. It occurred to me that it might be an indication as to whom this bike was made for. To me it reads "C1DVH62".
The "62" part matches with the CTT frame size, but the rest? "C1" the model? "DVH" the customer? The "H" could also be "hauteur", but the French generally use "taille" for frame height, AFIK.
All suggestions are welcome.