Inside Out Library · ExploreCatalogue of the W. P. Wilstach collection : Memorial Hall (1922)Philadelphia Museum of Art · Philadelphia, Pa. : The Commissioners of Fairmount Park · leaf 221CONSTANT TROYON A Boy with OxenWilstach, W. P · ArtInternet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.More pictures from Catalogue of the W. P. Wilstach collection : Memorial HallMore like this