Show your nautical spirit with this 1″ square gloss-finish button featuring the International Maritime Signal Flag for the letter “S.”
In maritime communication, the “S” flag (Sierra) means “I am operating astern propulsion.” Its bold white background with a central blue square ensures high visibility — a clear signal of vessel movement and maneuvering at sea.
Perfect for sailors, collectors, and maritime history enthusiasts, this durable pin-back button honors the clarity and beauty of traditional signal flags. Collect the full alphabet to spell your own message in the timeless language of the sea!
Show your nautical spirit with this 1″ square gloss-finish button featuring the International Maritime Signal Flag for the letter “S.”
In maritime communication, the “S” flag (Sierra) means “I am operating astern propulsion.” Its bold white background with a central blue square ensures high visibility — a clear signal of vessel movement and maneuvering at sea.
Perfect for sailors, collectors, and maritime history enthusiasts, this durable pin-back button honors the clarity and beauty of traditional signal flags. Collect the full alphabet to spell your own message in the timeless language of the sea!
