Louis De Mauny (Boulogne s/Mer & London) n.d. Studio portrait of a shrimp fisherwoman, Boulogne-sur-Mer
Carte de visite Private collection of James V. Burke (Carlotta Hartman, 9 March 2022) this net is called a "pousseux" in French, used for shrimp fishing at low tides.
It is still used nowadays in the north of France during the "pêche à pied", which consists in fishing for shellfish, crustaceans and some types of fish during the low tide using a few tools such as this net.