Marine signal flag: Letter "N" (November) Maritime Safety British Admiralty Nautical Chart 1808:

British Admiralty Nautical Chart 1808: Approaches to Otaru Ko and Rumoi Ko is a standard nautical chart

Vessels sailing under the Ivory Coast (Cote de Ivorire) Country Flag are required to have on board this flag as part of flag state requirements that derive from maritime regulations in the International Code of Signals and the International Safety Management (ISM) Code

1    Type and Grade of Chain

Sabine Pass and Approaches to Port Arthur and Beaumont is a standard nautical chart

Marine signal flag: Letter "N" (November) Maritime Safety British Admiralty Nautical Chart 1808:International maritime signal message: "No" or "Negative" 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.