An early 19th century American rosewood and brass bound writing slope

An early 19th century American rosewood and brass bound writing slope, with fine stringing and bead decoration, the hinged cover inscribed J. Walker Devlin, to a tooled leather slope with cedar linings, pen tray and ink well recesses, bottles missing, sides with sunken brass handles, 6.25in (16cm) h, 17in (43cm) w, 11in (28cm) d.