Nautical Signal Flag of Letter "D" in Shadowbox Frame

International maritime signal flag of letter 'D', 'DELTA,' set into a shadowbox frame. The cotton flag has a white canvas hoist with a sisal rope and wood toggle. The cotton field is blue and yellow. The signal for this flag "D" is raised, and the message is "Keep clear, I am maneuvering with difficulty." The flag is mounted to a beige matting with a mahogany backboard and a sturdy shadowbox frame. 19"H x 23"W