Nautical Signal Flag of Letter "P" in Shadowbox Frame

International maritime signal flag of the letter "P," "PAPA," set into a shadowbox frame. The cotton flag has a white canvas hoist with a sisal rope and wood toggle, with a maker's label from American flag maker Annin, the oldest flag maker in the United States, known for high quality and durability. The cotton field is dark blue with a white square. The signal for the "P" flag, when raised by itself, is to announce, "Recall. All persons return to vessel. Vessel about to sail." The flag is mounted to beige matting that is attached to a sturdy plywood backboard. 19"H x 23"W