Signal Flags Keyring

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International code flags are used to signal between two ships or between ship and shore. They are a set of ship flags of different colours, shapes and markings that have different meanings when used singly or in combination. Yellow with black circle: India. Altering course to port. White with red diamond: Foxtrot. Disabled. Blue with a white square: Papa. About to sail. Yellow and red: Oscar. Man overboard. Show more