Painting of the zola dam near aix-en-provence in france. The painting is at present part of the gwendolyn and margaret davies collection of the national museum of wales in cardiff. Object Type: painting. Genre: landscape painting. Date: circa 1879. Dimensions: height: 53.5 cm (21 in) ; width: 72.4 cm (28.5 in). Medium: oil on canvas. Collection: Museum Wales. Le Barrage de François Zola, par Paul Cézanne, NMW A 2439