In his 1867 exhibition Courbet showed a number of ‘paysages de neige’, or snowscapes, in which the white-blanketed landscape and the trowelled- on layers of white paint seemed as one. These innovative realist works inspired several young artists, including Monet, Pissarro, and Sisley to experiment with the new genre. Cézanne later stated: ‘He painted snow like no one else!’ Imprisoned and later exiled in Switzerland for his
republican activism during the Paris Commune of 1871, Courbet began allowing studio assistants to copy his paintings. Winter is accepted as authentic in the catalogue raisonné of Courbet’s oeuvre but its authorship has recently been debated.
[1] See Catalogue des tableaux modernes par Cézanne, Courbet, Delacroix, Manet, Monet, Renoir, Sisley, Tassaert, aquarelles & dessins, objets d'art et d'ameublement, Galerie Georges Petit (Commissioners Chevallier, Aulard, Briere and Mannheim), Paris, 1-4 July 1899, accessed https://archive.org/stream/georgespetit00gale#page/n49/mode/2up
[2] Email correspondence with Durand-Ruel, 4 July 2017.