C.L.C. (Charles L’Hôpital et Cie) was a postcard publishing house founded by Charles L’Hôpital in Paris, based on an earlier business, J Duval & Cie.
CLC had a single curly capital L entwined in the anchor, Duval had the letters J D and C. The companies were supported by ELD, which absorbed them in 1905 but continued to issue cards with anchor logos until around 1909. In fact there are even cards with an "ELD" anchor logo, see below.
Many of the cards are views. Some early cards used images which come from Rotophot cards.