Yesterday I added this picture to my Welcome page. If you hadn’t realised, those are International Code of Signals letter flags.
I created this design for a postcard; a separate post about that coming to my Cards section soon. It has no meaning as a communication: traditionally flags were flown in four letter vertical groups to convey a huge variety of predetermined signals. Meanwhile here are the meanings of the individual flags – together making a rather inconsistent message…
M MIKE My vessel is stopped and making no way through the water.
A ALFA I have a diver down; keep well clear at slow speed.
R ROMEO (Pre 1969:) The way is off my ship; you may feel your way past me.
L LIMA You should stop your vessel instantly.
O OSCAR Man overboard.
E ECHO I am altering my course to starboard.
S SIERRA I am operating astern propulsion.