Pretty wallpaper by C. F. A. Voysey, English architect and designer (1857-1941). No doubt the country houses he dotted the British countryside with had them in every room . . . . . why else to design both . . . ups the sales you know.

"Minto." 1901.
“Minto.” 1901. Color machine print. Essex and Company, Manufacturer. © Victoria and Albert Museum. via http://collections.vam.ac.uk/item/O559626/minto-wallpaper-c-f-a/.
"Dovedale." 1905.
“Dovedale.” 1905. ©Photo Les Arts Décoratifs, Paris/Jean Tholance. Collection of the Musee Arts Décoratifs. via http://collections.madparis.fr/dovedale.
"Fidelis." 1919.
“Fidelis.” 1919. Engraved and colored by hand. Image © Victoria and Albert Museum. via http://collections.vam.ac.uk/item/O559616/fidelis-wallpaper-design-c-f-a/
"Tulip." 1893-95.
“Tulip.” 1893-95. Block printed on paper. Image © The Cooper Hewitt Museum. via https://collection.cooperhewitt.org/objects/18667891/#image-rights
Wallpaper design. April, 1909.
Wallpaper design. April, 1909. Watercolor, pen and ink and pencil on paper. © Victoria and Albert Museum. via http://collections.vam.ac.uk/item/O1068277/design-for-wallpaper-design-c-f-a/