International maritime signal flags are standarized flags used to communicate with ships. The principal system of flags and associated codes is the International Code of Signals. Various navies have f
USS Blue Ridge (LCC-19) displaying signal flags indicating a pilot aboard, a coded message, and her callsign, "NQHS"
Sailor prepares signal flags for operations at sea
Example of signal flags used as decoration aboard USCGC Eagle
Two sail boats dressed overall with signal flags.
The Z flag is one of the international maritime signal flags.
International maritime signal flags
…England expects that every man will do his duty" "The fate of the Empire rests on the outcome of this battle" Flag of Germany after World War II (C-Pennant…
The Z flag (upper left) is still flown daily from the signal yardarm of Mikasa, now a museum ship
Members of Shuken Kaifuku wo Mezasu Kai bearing the Z flag and the Rising Sun flag