[Blackstone, Harry (Henry Boughton)] Three Pieces of Fredrik the Great Ephemera. Circa 1917. Including a theater program, handbill listing the entire show, and letterpress broadside. All three feature Blackstone?s first wife, Inez Nourse. The largest 13 ? x 6?. Blackstone performed under many stage names, and worked as Fredrik the Great until anti-German sentiment during WWI compelled him to change his name to Blackstone. Items from his short career as Fredrik are scarce.