Answer:
I think that it is grid holes
If you want people to answer you have to translate because everyone knows English not whatever language that is
An outgoing, adventurous man, Du Camp also pioneered in photography and published works in virtually every literary genre.
In 1851 Du Camp founded the Revue de Paris and in it published Flaubert’s great novel, Madame Bovary; To La Revue des Deux Mondes, Du Camp contributed his Paris, ses organes, ses fonctions et sa vie, 6 vol
