[Brett]

While not strickly Camouflage, I heard a German sea raider was painted
white on one side & black on the other.

I believe it was escaping a battle around the Falklands showing white
(early 1915?), hotly pursued by the enemy. It ducked into a rain squall & reversed course. When the enemy saw a black ship it asked if they had
seen a white ship.

The Germans answered they did, sailing on their original course & made
there getaway when the enemy tore off after the phantom white ship!