Rouen Cathedral, West Façade by Claude Monet https://www.nga.gov/artworks/46524-rouen-cathedral-west-facade
Toward the middle of the 1880s, a number of artists became disaffected with impressionism. Monet began to explore painting in a series, or creating groups of works of almost identical subjects.
New Haven, 2000: 174-175, color fig. 181-184. 2004 Hand, John Oliver.
