All mariners need a comprehensive knowledge of the buoyage rules and should be able instantly to identify a mark at first sight

Each card shows a flag of the International Code in colour on the face, with the signal letter or number and the meaning of the signal flag on the reverse

An extremely useful set of cards which makes a difficult subject much easier

36 cards showing the Morse symbol, both letters and numerals, with the back of the card giving the meaning

These cards show the view forward from the deck of various vessels (power, sailing and fishing) of developing traffic situations at sea

This pack of Flip Cards illustrates the signals made by ships at sea, and covers lights, fog signals and the usual distress and search and rescue signals