Marine signal flag: Letter "Q" (Quebec) Coastal Waters of Southeast Alaska and British Columbia British Admiralty Nautical Chart 1674:

British Admiralty Nautical Chart  1674: Eastern Approaches to Suva HarbourBritish Admiralty Nautical Chart 1674: Eastern Approaches to Suva Harbour is a standard nautical chart

Bibliography

NOAA Nautical Chart 11013: Straits of Florida and Approaches is a standard navigation chart used by commercial and recreational mariners alike

Daya Wan and Approaches to Huizhou is a standard nautical chart

NOAA Nautical Chart 11486: St

Marine signal flag: Letter "Q" (Quebec) Coastal Waters of Southeast Alaska and British Columbia British Admiralty Nautical Chart 1674:International maritime signal message: "Ship meets health regs; request clearance into port" Marine signal flags are international signals used by ships at sea to spell out short messages, or more commonly, used individually or in combination they have special meanings.