Framed International Code of Signals Sierra (S) Linen Flag

PRE-ORDER — ESTIMATED TO SHIP FROM AUGUST 20

Framed International Code of Signals Sierra (S) maritime signal flag, professionally mounted within a shadow box display. Constructed of white linen with a centered blue square, the flag retains its original canvas hoist, rope lanyard, and wooden toggle. International Code of Signals flags were widely used aboard naval and merchant vessels to communicate standardized navigational and operational messages before the widespread adoption of radio communications, and they remain an essential part of maritime signaling today.

When flown alone, the Sierra (S) flag means "I am operating astern propulsion." It warns nearby vessels that the ship's propellers are engaged in reverse and that the vessel may move or maneuver unexpectedly. This important safety signal helps prevent collisions during docking, undocking, and other close-quarters operations. Its clean, distinctive design and practical significance make it an excellent addition to any collection of naval or nautical memorabilia.

Weight: 6 lbs.
Overall Dimensions: 20"H × 26 1/2"W × 2"D
Made: American
Material: Linen
Date: 1950