Letter to Walter Ferro from the National Museum of American Art requesting his information for their records.Letter to Walter Ferro from the Jane A. Lightburn of Saudi Research & Marketing Company, Jeddah, Saudi Arabia, regarding the Focus Feature she wrote about Ferro for the Saudi Report.Interoffice Correspondence regarding Solar Clock public sculpture, 1982Letter to Walter Ferro from the Lincoln City Libraries regarding borrowing original illustrations for an exhibit.Letter to Walter Ferro regarding his loan of illustrations for exhibit.Handwritten letter to the Audubon Society regarding wood-cut print by Walter Ferro.Rockefeller University letter to Walter Ferro regarding Audubon printsMetropolitan Museum of Art letter to Walter Ferro about potential purchase of prints for their collection.Letter to Walter Ferro regarding the design of the jacket cover for The Nick Adams Stories by Ernest Hemingway.Metropolitan Museum of Art letter to Walter Ferro regarding acquisition of a print